ALDY HIMAWAN NUARI S, UMI CHOTIJAH. PENERAPAN METODE WATERFALL PADA SISTEM INFORMASI PELAYANAN JASA UJI LABORATORIUM KIMIA. JESH [Internet]. 2023Oct.13 [cited 2026Mar.20];5(02):1-. Available from: https://sthf.ac.id/jurnalintelektiva.com/index.php/jurnal/article/view/990