Syaputra, Reka Dwi, and Achmad Solichin. “Pregnancy Risk Level Classification Using the Crisp-DM Method”. Jurnal Riset Informatika 5, no. 1 (December 15, 2022): 93–104. Accessed December 30, 2025. https://ejournal.kresnamediapublisher.com/index.php/jri/article/view/195.