Oviedo Fierro F, Vinueza Lozada A. RETRACTED: Design and construction of a permanent mold using finite element software. Enfoque UTE [Internet]. 2013 Jun. 27 [cited 2024 Nov. 22];4(1):pp. 14 - 31. Available from: https://ingenieria.ute.edu.ec/index.php/revista/article/view/22