SAEED, Syed Amir; FAROOQ, Huzaifa; KARIM, Neelam; ALI KHAN, Nabeel; SHAH, Maha; YOUSUF, Maheen. Vendi Vending Machine. International Journal of Experiential Learning & Case Studies, [S. l.], v. 1, n. 2, p. 51–29, 2016. Disponível em: https://journals.iobm.edu.pk/index.php/ijelcs/article/view/374. Acesso em: 19 may. 2026.