Implementation of the Waterfall Method in Designing and Building an Income and Cost Management Information System: Case study: Limited Liability Company Adau Kapuas. Bulletin of Comp. Sci. Electr. Eng. [Internet]. 2023 Dec. 30 [cited 2026 Apr. 17];4(2):65-76. Available from: https://www.bcsee.idsciencecenter.com/index.php/bcsee/article/view/1183