Fawaidul Badri, Maulana R, Khotimah K, Budiarti RPN, Andhyka A. Design and Build a Web App-Based Conference Registration System Using the Waterfall Model. ATCSJ [Internet]. 2022May30 [cited 2024Nov.21];4(2):119-27. Available from: https://journal2.unusa.ac.id/index.php/ATCSJ/article/view/2820