“KUALITAS PELAYANAN PRODUK HERBALIFE DI CLUB SYALALA GEMBIRA NUTRITION”, MZK, vol. 15, no. 2, pp. 21–31, Aug. 2024, Accessed: Apr. 24, 2026. [Online]. Available: https://ijc.ilearning.co/index.php/mozaik/article/view/2308