Yasoziduhu Halawa, and Zulham Sitorus. 2026. “Application of the Preference Selection Index (PSI) Method in the Decision Support System for Selecting Prospective OSIS Chairpersons at SMAN 1 Mandrehe”. International Conference Epicentrum of Economic Global Framework, February, 4118-32. https://proceeding.pancabudi.ac.id/index.php/ICEEGLOF/article/view/1990.