Damanik B, Sadarmanis Halawa. Web-Based Competency Test Information System with Automated Scoring Using the Waterfall Method . ZTR [Internet]. 2026 Mar. 31 [cited 2026 Apr. 6];8(1):89-93. Available from: https://ejournal.unibabwi.ac.id/index.php/Zetroem/article/view/7622