USE OF SIMPLEX METHOD IN DETERMINATION OF OPTIMAL RATIONAL COMPOSITION OF TITLES PRODUCIBLE FROM NIGERIAN CLAYS. Nigerian Journal of Technology, [S. l.], v. 16, n. 1, p. 36–46, 2003. DOI: 10.4314/njt.161.428. Disponível em: https://www.nijotech.com/index.php/nijotech/article/view/428.. Acesso em: 2 may. 2024.