Van der Walt, Anouchka(University of Pretoria. Faculty of Engineering, Built Environment and Information Technology. Dept. of Industrial and Systems Engineering, 2013-04-29)
Empresa Brasileira de Planejamento de Transportes; Brazilian Transportation Planning Agency; International Bank for Reconstruction and Development; Texas Research and Development Foundation; GEIPOT; DNER; Brazil. Departamento Nacional de Estradas de Rodagem; United Nations Development Programme; UNDP; Goiás (Brazil : State). Departamento de Estradas de Rodagem; DER-GO; Minas Gerais (Brazil). Departamento de Estradas de Rodagem; DERMG; World Bank; IBRD; TRDF(Empresa Brasileira de Planejamento de Transportes ; United Nations Development Programe, 1981)