Manek, Chelsi Goris, and Christina Yanita Setyawati. “The Influence of Product Quality and Promotion on Consumer Satisfaction on Longo Products”. Jurnal Performa: Jurnal Manajemen dan Start-up Bisnis 7, no. 4 (November 1, 2022): 445–454. Accessed February 20, 2026. https://journal.uc.ac.id/index.php/performa/article/view/2142.