et. al., Ucu Nugraha ,. “Blackbox Testing On E-Commerce System Web-Based Evermos (Feature: Registration Experiment & Revamp)”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 8 (April 24, 2021): 1026–1037. Accessed October 13, 2025. https://www.turcomat.org/index.php/turkbilmat/article/view/2984.