Rizaldy, Natsir F, Fitriansyah A. APPLICATION OF THE WEIGHTED AGGREGATED SUM PRODUCT ASSESSMENT (WASPAS) METHOD FOR SELECTING ENGINE OIL FOR AUTOMATIC MOTORCYCLES AT DEDE EXTREM MOTORCYCLE WORKSHOP. Journal of Engineering and Pharmacy [Internet]. 2026Feb.28 [cited 2026Jun.7];7(1):94-103. Available from: https://iontech.ista.ac.id/index.php/iontech/article/view/168