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, pp. 4118–4132. Available at: https://proceeding.pancabudi.ac.id/index.php/ICEEGLOF/article/view/1990 (Accessed: 11 November 2026).