DR. S. VENU GOPAL; MR. H. VENKATESWARA REDDY; MR. G. SREENIVASULU. UML Modeling for Tea / Coffee Machine. Global Journal of Computer Science and Technology, [S. l.], v. 12, n. C11, p. 1–2, 2012. Disponível em: https://computerresearch.org/index.php/computer/article/view/549. Acesso em: 1 may. 2024.