RATNASRI, Nilani; SHARMILAN, Tharaga. Vending Machine Technologies: A Review Article. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 58, n. 2, p. 160–166, 2021. Disponível em: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/12579. Acesso em: 3 oct. 2025.