Purba, Ramen Antonov, and Sondang Sondang. “Design and Build Monitoring System for Pregnant Mothers and Newborns Using the Waterfall Model”. INTENSIF: Jurnal Ilmiah Penelitian dan Penerapan Teknologi Sistem Informasi 6, no. 1 (February 11, 2022): 29-42. Accessed November 23, 2024. https://ojs.unpkediri.ac.id/index.php/intensif/article/view/16085.