Indra Pratama Indra L. PENERAPAN METODE WEIGHTED SUM MODEL PADA SISTEM SELEKSI SUPPLIER DI UD. SUMBER BESI BERBASIS WEB . Jtia [Internet]. 2023 Feb. 20 [cited 2025 Sep. 10];4(1):33-8. Available from: http://114.6.41.75/index.php/jtia/article/view/2789