A Working Paper on Procurement Anti-corruption in Yemen. The Arab Journal of Administration, Cairo, v. 39, n. 4, p. 251–264, 2019. DOI: 10.21608/aja.2019.66952. Disponível em: https://ajajournal.org/index.php/aja/article/view/408. Acesso em: 12 jun. 2026.