Hendrawan, P. S., Yolandri, D., Sebastian, V. J. . ., Nicholas, H., Hutagalung, R. I. and Monica, T. S. (2025) “The effect of price and product promotion on customer loyalty in a digital market context ”, Journal of Engineering and High Technology, 1(1), pp. 1–19. Available at: https://journal.privietlab.org/index.php/JEHT/article/view/25 (Accessed: 4 December 2025).