GARBA, A., OLALEYE, Y.O. and JIBRIN, N.S. 2015. Material resources optimization for sustainable construction in Nigeria. In Proceedings of the 12th International post-graduate research conference 2015, 10-12 June 2015, Salford, UK. Rotterdam: CIB [online], ID 071, pages 824-834. Available from: http://www.irbnet.de/daten/iconda/CIB_DC28781.pdf