Yasoziduhu Halawa, and Zulham Sitorus. “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 13, 2026): 4118–4132. Accessed November 11, 2026. https://proceeding.pancabudi.ac.id/index.php/ICEEGLOF/article/view/1990.