Ramdani F, Septiana L. PENERAPAN MODEL WATERFALL PADA APLIKASI PENJUALAN ONLINE KOPERASI RANCAGE KAMPUNG KALENG BOGOR. jitk [Internet]. 1Sep.2019 [cited 17Jul.2024];5(1):145-50. Available from: https://ejournal.nusamandiri.ac.id/index.php/jitk/article/view/692