ANALISIS TERHADAP RANCANGAN SISTEM PORTAL PROCUREMENT BERBASIS WEB DENGAN MODEL WATERFALL STUDI KASUS PT PERTAMINA (PERSERO). Jurnal Intelek Insan Cendikia, [S. l.], v. 2, n. 3, p. 4642–4655, 2025. Disponível em: https://jicnusantara.com/index.php/jiic/article/view/2735. Acesso em: 5 jun. 2026.