KURNIAWAN, Yohannes; PARAPAGA, Janastasha Christie. Pengembangan Sistem Informasi Siklus Pendapatan pada PT XYZ (Pendekatan Studi Kasus). Ultima InfoSys : Jurnal Ilmu Sistem Informasi, [S. l.], v. 5, n. 1, p. 12–19, 2014. DOI: 10.31937/si.v5i1.214. Disponível em: https://ejournals.umn.ac.id/index.php/SI/article/view/214. Acesso em: 18 sep. 2025.