SIWAWA, Dumiso; MUKELABAI, Mukelabai. Assessing The Efficiency of Procurement-To-Pay Systems In Zambia’s Nonprofit Organizations: A Case Study of Catholic Relief Services Zambia (CRS). African Journal of Commercial Studies, [S. l.], v. 6, n. 1, p. 147–157 , 2025. DOI: 10.59413/ajocs/v6.i.1.12. Disponível em: https://ijcsacademia.com/index.php/journal/article/view/189. Acesso em: 29 apr. 2026.