Saharani, Andina, and Lilik Indayani. “The Influence of Product Quality, Price and Promotion on Purchase Decisions of Cosmetic Products in Sidoarjo”. Indonesian Journal of Innovation Studies 21 (January 30, 2023): 10.21070/ijins.v21i.778. Accessed November 23, 2024. https://ijins.umsida.ac.id/index.php/ijins/article/view/778.