ARIPIN, Ahmad Nurul; MUJIYONO, Sri. School Information System Innovation Using CodeIgniter 3 to Optimize Services in Elementary Schools. ELSE (Elementary School Education Journal): Jurnal Pendidikan dan Pembelajaran Sekolah Dasar, [S. l.], v. 9, n. 2, 2025. DOI: 10.30651/else.v9i2.24245. Disponível em: https://journal.um-surabaya.ac.id/pgsd/article/view/24245. Acesso em: 5 dec. 2025.