RANCANGANSISTEM INFORMASI E-PROCUREMENT BERORIENTASI OBJECT ( STUDI KASUS : PT. KRAKATAU TIRTA INDUSTRI ). Jurnal Ilmiah Sains dan Teknologi, [S. l.], v. 2, n. 2, p. 76–98, 2018. Disponível em: https://ejournal.lppm-unbaja.ac.id/index.php/saintek/article/view/97. Acesso em: 23 jun. 2025.