Siagian, Andika Fadilla, and Suendri Suendri. “Applying the Periodic Review System Method in Progressive Web Apps for E-Commerce Inventory Management”. Journal of Information Systems and Informatics 7, no. 2 (June 30, 2025): 1758–1775. Accessed March 7, 2026. https://journal-isi.org/index.php/isi/article/view/1117.