Labor-intensive Rural Roads in Kenya, Tanzania, and Botswana: Some Evidence on Design and Practice. Ethiopian Journal of Economics, [S. l.], v. 3, n. 2, p. 83–106, 1994. Disponível em: https://ethiopianjournalofeconomics.org/index.php/EJE/article/view/290.. Acesso em: 25 jun. 2026.