RIA ANJELI; YELFI VITRIANI; BENNY SUKMA NEGARA; H, Nazruddin Safaat. Decision Support System for Facial Wash Recommendations for Oily Skin Using the Weighted Product Method. Engineering And Technology Journal, [S. l.], v. 11, n. 05, p. 10065–10068, 2026. DOI: 10.47191/etj/v11i05.41. Disponível em: https://everant.org/index.php/etj/article/view/2625. Acesso em: 28 sep. 2026.