Sheila Puspita Wulan Aprilia, Haerudin, and Edy Purwanto. “The Influence of Brand Ambassadors, Promotions, Product Quality, Brand Image on Purchasing Decisions”. Economics and Business International Conference Proceeding, vol. 1, no. 1, May 2024, pp. 101-1, https://jurnalnew.unimus.ac.id/index.php/EBiC/article/view/386.