PURNAMASARI, Yessy Sabilla; MUJIYONO, Sri; ISMIRIYAM, Fiktina Vifri. Expert System for The Diagnosis of Depression in Students Using Certainty Factor Method: A Case Study of Ngudi Waluyo University. Journal of Information Systems and Informatics, [S. l.], v. 7, n. 1, p. 909–923, 2025. DOI: 10.51519/journalisi.v7i1.950. Disponível em: https://www.journal-isi.org/index.php/isi/article/view/950. Acesso em: 7 mar. 2026.