Decision Support System for the Election of the Chairman of the Sanggeng Par Gki Sion Using the Weighted Product Method: SISTEM PENDUKUNG KEPUTUSAN PEMILIHAN KETUA PAR GKI SION SANGGENG MENGGUNAKAN METODE WEIDTED PRODUT. JISTECH. 2024;12(2). Accessed September 28, 2026. http://jistech.unipa.ac.id/index.php/istech/article/view/259