ALDY HIMAWAN NUARI S, UMI CHOTIJAH. PENERAPAN METODE WATERFALL PADA SISTEM INFORMASI PELAYANAN JASA UJI LABORATORIUM KIMIA. JESH [Internet]. 2023 Oct. 13 [cited 2026 Jun. 24];5(02):1-6. Available from: https://jurnalintelektiva.com/index.php/jurnal/article/view/990