Okafor, Nwonu, Christopher, Agbaeze Emmanuel Kalu, and Obi-Anike Happiness Ozioma. 2017. “Effect of Organizational Structure on Performance of Selected Manufacturing Companies in Enugu State Nigeria”. The International Journal of Business & Management 5 (5). https://internationaljournalcorner.com/index.php/theijbm/article/view/124216.