ERIZAL, E. SISTEM LAYANAN SMS UNTUK KEGAWATDARURATAN ANTENATAL DI DAERAH ISTIMEWA YOGYAKARTA. Jurnal Ilmiah Teknologi Infomasi Terapan, [S. l.], v. 1, n. 2, 2015. DOI: 10.33197/jitter.vol1.iss2.2015.52. Disponível em: https://journal.widyatama.ac.id/index.php/jitter/article/view/52. Acesso em: 29 apr. 2024.