Timothy Marcellius Prathama et al. 2025. Membangun Competitive Advantage GoPay: Peran Product Innovation dan E-Service Quality  dengan Mediasi Customer Satisfaction. PENG: Jurnal Ekonomi dan Manajemen. 3, 1 (Aug. 2025), 447–466. DOI:https://doi.org/10.62710/39kwzw77.