HIDAYATTULLAH, Muhammad Fikri; HAPSARI, Yustia. Implementasi Metode Waterfall pada Rancang Bangun Sistem Informasi Kerja Praktik Industri: Studi Kasus: Program Studi D IV Teknik Informatika Politeknik Harapan Bersama. Ultima InfoSys : Jurnal Ilmu Sistem Informasi, [S. l.], v. 11, n. 2, p. 85–89, 2020. DOI: 10.31937/si.v11i2.1594. Disponível em: https://ejournals.umn.ac.id/index.php/SI/article/view/1594. Acesso em: 13 jun. 2025.