Hidayattullah, M. and Hapsari, Y. 2020. Implementasi Metode Waterfall pada Rancang Bangun Sistem Informasi Kerja Praktik Industri. Ultima InfoSys : Jurnal Ilmu Sistem Informasi. 11, 2 (Dec. 2020), 85-89. DOI:https://doi.org/https://doi.org/10.31937/si.v11i2.1594.