Yeboah, Kofi Owusu, Charles Boateng, Josephine Amponsem, and Erick Kwaku Attefah. 2015. “The Effect of Outsourcing on Anglogold Ashanti Obuasi Mines Performance”. International Journal of Business, Economics and Management 2 (8):184-203. https://doi.org/10.18488/journal.62/2015.2.8/62.8.184.203.