Moura, B., A. T. Moura, A. E. Silva Guede, and A. Castro. “IMPROVED WEAR ON FEED CHANNEL OF GRAVITY CASTING MOLDS”. ITEGAM-JETIA, Vol. 5, no. 19, Sept. 2019, pp. 131-5, http://br940.teste.website/~itegamjetia/journal/index.php/jetia/article/view/505.