1.
Frieyadie F. PENERAPAN MODEL WATEFALL PADA RANCANG BANGUN SISTEM INFORMASI PENJUALAN ONLINE HID BULLAES. jitk [Internet]. 15Aug.2016 [cited 25Feb.2020];2(1):1-. Available from: http://ejournal.nusamandiri.ac.id/index.php/jitk/article/view/226