Judul: Analysis of Factors Affecting Islamic Banking Financing during the COVID-19 Pandemic
Abstrak: Penyebaran COVID-19 menjadi salah satu ancaman terbesar bagi ekonomi global dan pasar keuangan di dunia. Penelitian ini dilakukan untuk mengetahui pengaruh faktor-faktor yang memengaruhi pembiayaan bagi hasil selama pandemi COVID-19 terhadap perbankan syariah di Indonesia. Penelitian ini menggunakan sampel 13 Bank Umum Syariah dan 20 Unit Usaha Syariah serta periode waktu kuartal I-IV 2020. Alat analisis yang digunakan dalam penelitian ini adalah regresi data panel dengan pendekatan Random Effect Model (REM). Hasil penelitian menunjukkan bahwa DPK, NPF, FDR, ROA, PDB, inflasi dan jumlah uang beredar secara simultan berpengaruh terhadap pembiayaan bagi hasil. Untuk hasil estimasi secara parsial, variabel DPK, FDR, dan ROA berpengaruh signifikan dan positif terhadap pembiayaan bagi hasil. Sedangkan variabel NPF, PDB, inflasi, dan jumlah uang beredar tidak berpengaruh signifikan terhadap pembiayaan bagi hasil., The spread of COVID-19 is becoming one of the biggest threats to the global economy and financial markets in the world. This study is conducted to determine the effect of the factors that influence profit-sharing financing during the COVID-19 pandemic on Islamic banking in Indonesia. This study uses a sample of 13 Islamic Commercial Banks and 20 Sharia Business Units and the time period is quarter I-IV 2020. The analytical tool used in this study is panel data regression with the Random Effect Model (REM) approach. The results indicate that DPK, NPF, FDR, ROA, GDP, inflation and the money supply simultaneously has an effect on profit sharing financing. For the partial estimation results, the variables of DPK, FDR, and ROA have a significant and positive effect on profit sharing financing. While the variables of NPF, GDP, inflation, and the money supply have no significant effect on profit sharing financing.
Keyword: COVID-19, financial performance, Islamic banking financing, macroeconomics, panel data

Judul: Influence of Internal and External Factors on Islamic Rural Banks’ Profitability During the Covid-19 Pandemic
Abstrak: Nilai Return on Asset (ROA) Bank Pembiayaan Rakyat Syariah (BPRS) terus menurun selama pandemi Covid-19, yaitu pada tahun 2020 sampai 2021. Bank Umum Syariah dan Unit Usaha Syariah juga mengalami penurunan nilai ROA di tahun 2020 tetapi berhasil meningkatkannya di tahun 2021. Tujuan penelitian ini adalah mengidentifikasi perkembangan rasio keuangan BPRS dan kondisi makroekonomi Indonesia, serta menganalisis faktor internal dan eksternal yang memengaruhi profitabilitas BPRS di Indonesia periode kuartal II tahun 2020 hingga kuartal I tahun 2022. Sampel dalam penelitian ini terdiri atas 134 BPRS. Penelitian ini menggunakan regresi data panel dengan ROA sebagai variabel dependen. Hasil regresi data panel menunjukkan bahwa secara parsial FDR berpengaruh positif terhadap ROA, sedangkan NPF dan BOPO berpengaruh negatif terhadap ROA. Sementara itu, CAR, PDB, dan IHK tidak berpengaruh terhadap ROA., Return on Asset (ROA) value of Islamic Rural Banks keeps decreasing during the Covid-19 pandemic, specifically during 2020 to 2021. Islamic Commercial Banks and Sharia Business Units also experienced a decrease in their ROA value in 2020, but managed to increase it in 2021. This study aims to identify the development of Islamic Rural Banks’ financial ratios and Indonesia’s macroeconomic conditions and also to analyze the effect of internal and external factors on Islamic Rural Banks’ profitability in the second quarter of 2020 to the first quarter of 2022. The sample used consisted of 134 Islamic Rural Banks. This study used panel data regression with ROA as the dependent variable. Panel data regression result shows that partially, FDR has a positive impact on ROA, whereas NPF and OER have a negative impact on ROA. On the other hand, CAR, GDP, and CPI have no impact on ROA.
Keyword: BPRS, covid-19, data panel, makroekonomi, rasio keuangan

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.
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