FERNANDO, Erick. Designing E-Commerce Sales of Footwear Using the Waterfall Method . International Journal of Science, Technology & Management, [S. l.], v. 4, n. 6, p. 1531–1541, 2023. DOI: 10.46729/ijstm.v4i6.1008. Disponível em: https://ijstm.inarah.co.id/index.php/ijstm/article/view/1008. Acesso em: 23 feb. 2026.