AKOMAH, B. B.; NANI, G. Public Procurement Corruption: Types, Approaches, and Collusion or Rigging. AFRICAN JOURNAL OF APPLIED RESEARCH, [S. l.], v. 2, n. 1, 2016. Disponível em: https://www.ajaronline.com/index.php/AJAR/article/view/165. Acesso em: 5 may. 2024.