“ARTIFICIAL NEURAL NETWORKS FOR MATERIAL CLASSIFICATION IN PURCHASING PORTFOLIO MANAGEMENT”. Revista Interdisciplinar de Pesquisa em Engenharia 2, no. 10 (janeiro 25, 2017): 39–50. Acesso em janeiro 7, 2026. https://periodicostestes.bce.unb.br/index.php/ripe/article/view/21726.