Umri, Chairil, et al. “KOMBINASI ALGORITMA FUZZY SIMPLE ADDITIVE WEIGHTING (FUZZY-SAW) DENGAN PREFERENCE RANKING ORGANIZATION METHOD FOR ENRICHMENT EVALUATION (PROMETHEE II)”. CESS (Journal of Computer Engineering, System and Science), vol. 4, no. 2, July 2019, pp. 305-12, doi:10.24114/cess.v4i2.14173.