Mahardika F, Abdillah ML. Design of Unified Modeling Language Information System for Motorcycle Unit Selling and Buying Transactions using the Waterfall Method. Hanif j. of inf. Systems [Internet]. 2024 Feb. 15 [cited 2026 Apr. 20];1(2):37-48. Available from: https://journal.ilmubersama.com/index.php/hanif/article/view/15