MUCHEMBI, J. W.; WANYONYI, K. W. An Assessment of Procurement Planning on the Efficiency of Procurement Function in Bungoma County. The International Journal of Business & Management, [S. l.], v. 6, n. 3, 2018. Disponível em: https://internationaljournalcorner.com/index.php/theijbm/article/view/129544. Acesso em: 23 jul. 2024.