EL-MORSY, S. On Minimizing Machines Rental Cost Using Heptagonal Fuzzy Processing Time. Journal of Qassim University for Science, [S. l.], v. 2, n. 2, p. 147–152, 2024. Disponível em: https://jnsm.qu.edu.sa/index.php/jnm/article/view/2372. Acesso em: 19 sep. 2024.