Okeudo, Geraldine Nkechinyere. “Impact of Labour, Capital and Human Resources in Productivity of Transport Firms in Nigeria”. International Journal of Sustainable Development & World Policy 1, no. 1 (October 15, 2012): 60–65. Accessed May 20, 2024. https://archive.conscientiabeam.com/index.php/26/article/view/2017.