Judul: Determinants that Affect Consumer Loyalty of Generation Z towards Wardah Skincare
Abstrak: Pendapatan skincare di Indonesia tertinggi pada tahun 2022 sebesar US$ 2,05 miliar. Masyarakat lebih memilih menggunakan produk lokal. Hal tersebut juga didukung dengan penduduk Indonesia yang didominasi generasi Z dan target utama pemasaran untuk menciptakan loyalitas konsumen. Produk skincare yang populer di kalangan masyarakat saat ini adalah Wardah. Penelitian ini bertujuan menganalisis determinan yang memengaruhi loyalitas konsumen generasi Z pada skincare Wardah di Jabodetabek dengan mengambil sampel sebanyak 135 responden. Pengambilan sampel penelitian ini menggunakan metode non probability sampling dengan teknik purposive sampling dan dianalisis dengan Structural Equation Model-Partial Least Square. Hasil penelitian menunjukkan bahwa yang berpengaruh signifikan dan positif memengaruhi loyalitas konsumen adalah brand trust dan perceived value., The skincare revenue in Indonesia in 2022 has the highest peak in US$ 2.05 billion. Most of skincare consumer prefer to use local products. This is also supported by the population of Indonesia which has dominated by Generation Z and the main target of marketing to create consumer loyalty. There is a brand which popular and has the biggest market is Wardah. This study aims to analyze the determinants that affect the loyalty of Generation Z consumers to Wardah skincare in Jabodetabek by taking a sample of 135 respondents. The sampling of this study uses a non-probability sampling method with a purposive sampling technique, and it is analyzed using the Structural Equation Model-Partial Least Square. The study's results shows that brand trust and perceived value significantly and positively influence consumer loyalty.
Keyword: Skincare, customer loyalty, halal, wardah

Judul: Pengaruh Social Media Influencer terhadap Keputusan Pembelian Produk Kecantikan Halal pada Generasi Z di Jabodetabek
Abstrak: Di Indonesia, kosmetik halal menjadi salah satu sektor industri halal yang sedang berkembang dan menempati posisi ke-2 di dunia. Kosmetik halal saat ini banyak diperhatikan oleh masyarakat khususnya remaja yang dikenal dengan nama generasi Z. Tujuan penelitian ini adalah untuk menganalisis pengaruh religiusitas, label halal, harga, kualitas dan social media influencer terhadap keputusan pembelian produk kecantikan halal pada generasi Z di Jabodetabek. Sampel penelitian ini berjumlah 114 responden yang mewakili generasi Z di Jabodetabek dan pengambilan data menggunakan kuesioner dengan skala Likert. Metode analisis data yang digunakan ialah metode regresi linear berganda dengan teknik pengambilan sampel menggunakan purposive sampling. Hasil menunjukkan bahwa secara bersama variabel independen berpengaruh signifikan terhadap keputusan pembelian. Secara parsial, harga dan kualitas produk berpengaruh terhadap keputusan pembelian sedangkan religiusitas, label halal dan social media influencer tidak berpengaruh., In Indonesia, halal cosmetics are one of the growing halal industrial sectors, occupying the 2nd position in the world. Halal cosmetics are currently getting a lot of attention from the public, especially teenagers, known as Generation Z. The purpose of this study was to analyze the effect of religiosity, halal label, price, quality and social media influencers on purchasing decisions for halal beauty products in Generation Z in Jabodetabek. The sample of this study amounted to 114 respondents representing generation Z in Jabodetabek and data collection using a questionnaire with a Likert scale. The data analysis method used in this research is multiple linear regression method with sampling technique using purposive sampling. The results show that simultaneously the independent variables have a significant effect on the dependent variable. Partially, price and product quality influence purchasing decisions, while religiosity, halal labels and social media influencers have no effect.
Keyword: Halal Cosmetics, Purchasing Decisions, Z Generation, Halal Cosmetics, Purchasing Decisions, Z Generation

Judul: : Persamaan Tunggal sebagai Representasi Kurva Komposit
Abstrak: A mathematical method is introduced to represent a composite curve based on an extension of analytic geometry. The representation is given either with a single equation or with two equations, in the case of parametric representation. This method permits the representation of composite curves in similar manner to the conventional representation of non-composite curves. Some mathematical tools, including Heaviside unit step function and periodizer function, are used in the establishment of a single equation. In this paper, regular equations of regular and irregular polygon, as well as composite curves of two dimensions, are implemented using a computer algebraic system, Mathematica.
Keyword: