Sari, A., Lestari, R., Sansprayada, A., Desriyani, D., & Rosmita, R.
(2019).
SISTEM INFORMASI PENJUALAN HELM DENGAN MENGGUNAKAN METODE WATERFALL.
Journal Of Information System, Applied, Management, Accounting And Research, 3(3), 11-18.
Retrieved from https://journal.stmikjayakarta.ac.id/index.php/jisamar/article/view/100