Purnamasari YS, Mujiyono S, Ismiriyam FV. Expert System for The Diagnosis of Depression in Students Using Certainty Factor Method: A Case Study of Ngudi Waluyo University. journalisi [Internet]. 2025 Mar. 30 [cited 2026 May 26];7(1):909-23. Available from: http://journal-isi.org/index.php/isi/article/view/950