Judul: Strategi Pemulihan PT Hotel Indonesia Natour Pascapandemi COVID-19
Abstrak: Pandemi COVID-19 mengakibatkan lumpuhnya industri perhotelan di Indonesia. PT Hotel Indonesia Natour (HIN), salah satu pelopor industri jasa perhotelan bertaraf internasional di Indonesia, juga turut mengalami penurunan okupansi dan pendapatan yang drastis selama masa pandemi. Oleh karena itu, diperlukan strategi yang tepat untuk mempercepat pulihnya perusahaan pascapandemi COVID-19. Penelitian ini bertujuan untuk (1) menganalisis faktor eksternal dan internal yang memengaruhi PT HIN selama masa pandemi COVID-19, (2) merumuskan strategi pemulihan pascapandemi COVID-19 bagi PT HIN, serta (3) merekomendasikan strategi pemulihan prioritas pascapandemi COVID-19 bagi PT HIN. Metode yang digunakan dalam penelitian ini ialah analisis lingkungan internal dan eksternal, analisis SWOT untuk merumuskan alternatif strategi, serta Analytic Hierarchy Process (AHP) untuk menentukan prioritas strategi. Berdasarkan hasil perhitungan AHP, strategi yang diprioritaskan untuk pemulihan PT HIN pascapandemi COVID-19 ialah (1) menawarkan product bundle, (2) meningkatkan kapasitas SDM dalam teknologi digital, serta (3) melakukan penetrasi pasar dengan digital marketing dan pemberian diskon., The COVID-19 pandemic has paralyzed the hotel industry in Indonesia. PT Hotel Indonesia Natour (HIN), one of the pioneers of the international hotel service industry in Indonesia, has also experienced a drastic decrease in occupancy and income during the pandemic. Therefore, the right strategy is needed to accelerate the company's recovery after the COVID-19 pandemic. This study aims to (1) analyze the external and internal factors that influenced PT HIN during the COVID-19 pandemic, (2) formulate post-COVID-19 pandemic recovery strategies, and (3) recommend priority post-COVID-19 pandemic recovery strategies for PT HIN. The methods used in this study are internal and external environmental analysis, SWOT analysis (to formulate alternative strategies), and the Analytic Hierarchy Process (AHP) (to determine strategic priorities). Based on the results of AHP calculations, the priority strategies for PT HIN's recovery after the COVID-19 pandemic are (1) offering product bundles, (2) increasing HR capacity in digital technology, and (3) penetrating the market with digital marketing and giving discounts.
Keyword: AHP, COVID-19, EFE & IFE, recovery strategy, SWOT

Judul: Strategi Pemulihan Industri Pariwisata Halal di DKI Jakarta
Abstrak: Pandemi Covid-19 menjadi guncangan besar bagi perekonomian dunia dan berdampak ke semua industri termasuk industri pariwisata halal. Penelitian ini bertujuan guna mengidentifikasi kekuatan, kelemahan, peluang, ancaman, serta merumuskankan strategi dalam pemulihan industri pariwisata halal di DKI Jakarta. Metode yang digunakan adalah Analytic Network Process berstruktur jaringan SWOT. Responden dalam penelitian ini berjumlah lima orang pakar meliputi akademisi, regulator, dan praktisi. Temuan penelitian menunjukkan aspek kekuatan adalah aspek yang paling berpengaruh dalam pemulihan industri pariwisata halal di DKI Jakarta. Hasil penelitian menunjukkan bahwa aspek kekuatan yang paling berpengaruh adalah DKI Jakarta memiliki keunggulan aspek infrastruktur, aksesibilitas, dan amenitas yang sudah mapan. Aspek kelemahan yang paling berpengaruh adalah masih terjadi mispersepsi pemahaman tentang pariwisata halal di masyarakat DKI Jakarta. Aspek peluang dan ancaman yang paling berpengaruh terdiri dari konsep pariwisata halal cocok diterapkan di Era new normal dan tidak ada pedoman guna merencanakan, mengelola, serta mengurangi dampak wabah/bencana di industri pariwisata. Adapun prioritas strategi pemulihan industri pariwisata halal di DKI Jakarta adalah penguatan branding pariwisata halal., The Covid-19 pandemic is a major shock to the world economy and has an impact on all industries, including the halal tourism industry. This study aims to determine the strengths, weaknesses, opportunities, threats, and formulate strategies in the recovery of the halal tourism industry in DKI Jakarta. The method used is the Analytic Network Process with a SWOT network structure. Respondents in this study collected five academic experts, regulators, and practitioners. The research findings show that the aspect of strength is the most influential aspect in the recovery of the halal tourism industry in DKI Jakarta. The results showed that the aspect of strength that had the most influence was that DKI Jakarta had the advantages of already established infrastructure, accessibility, and amenity aspects. The most influential aspect of weakness is that there is still a misperception of understanding about halal tourism in the people of DKI Jakarta. The most influential aspects of opportunities and threats consist of the concept of halal tourism which is suitable to be applied in the new normal era and there are no guidelines for planning, managing, and reducing the impact of epidemics/disasters in the tourism industry. The priority strategy for the recovery of the halal tourism industry in DKI Jakarta is to strengthen the branding of halal tourism.
Keyword: ANP, Covid-19, Halal Tourism, Strategy, SWOT

Judul: Pelabelan Super Vertex Magic
Abstrak: Super vertex magic labeling is labeling on graph with is a set of edges mapped into and is a set of vertices mapped into . It has a vertex magic labeling in which and represents the size and order of the graph respectively. This manuscript proves that paths, cyclics, and disjoint union of cyclics have a super vertex magic labeling. There are four theorems to be discussed. The first theorem proves that path is super vertex magic if and only if is odd and . The second theorem proves that cyclic is super vertex magic if and only if is odd. The third theorem proves that bijection function from an edge set onto of graph can be extended to a super vertex magic labeling if and only if the set amount of edge label that incidents with a vertex in the graph, consists of sequential integers as many as vertices in the graph. The fourth theorem proves that disjoint union of the cyclics consists of cyclics with each cyclic has vertices is super vertex magic if and only if and are odd.
Keyword: