SITORUS , Winda Aprilia. The Effect of Flash Sale Promotion, Free Shipping, and Purchase Intention on Purchase Decisions. Siber International Journal of Sport Education, [S. l.], v. 3, n. 3, p. 85–92, 2026. DOI: 10.38035/sijse.v3i3.451. Disponível em: https://review.e-siber.org/SIJSE/article/view/451. Acesso em: 9 oct. 2026.