HENDRAWAN, P. S.; YOLANDRI, D.; SEBASTIAN, V. J. . .; NICHOLAS, H.; HUTAGALUNG, R. I.; MONICA, T. S. The effect of price and product promotion on customer loyalty in a digital market context . Journal of Engineering and High Technology, [S. l.], v. 1, n. 1, p. 1–19, 2025. Disponível em: https://journal.privietlab.org/index.php/JEHT/article/view/25. Acesso em: 4 dec. 2025.