MUQTASID, A. F. Analysis And Design Of A Website-Based Information System For Educational Development Contribution Payments (Spp) At Smks Yapenap. Infoman’s : Jurnal Ilmu-ilmu Informatika dan Manajemen, [S. l.], v. 20, n. 1, 2026. Disponível em: https://ejournal.unsap.ac.id/index.php/infomans/article/view/2634. Acesso em: 23 jun. 2026.