NJERI, G. B. Effect of Operating Cost Management on Financial Performance of Sweet Potato Marketing Cooperatives in Kenya. The International Journal of Business & Management, [S. l.], v. 4, n. 9, 2016. Disponível em: https://internationaljournalcorner.com/index.php/theijbm/article/view/127145. Acesso em: 23 jul. 2024.