SYASA ANBAR PRATIWI. Analysis of External Factors Affecting Purchasing Decisions of Scarlett Whitening Products Through the Shopee Platform Using the PESTEL Model : A Study of Students at the University of Sumatera Utara, Medan. International Journal of Economics and Management Research, [S. l.], v. 5, n. 1, p. 490–509, 2026. DOI: 10.55606/ijemr.v5i1.685. Disponível em: https://ijemr.asia/index.php/ijemr/article/view/685. Acesso em: 20 jan. 2026.