Okoh, L. O. and Uzoka, P. (2012) “The Importance of Variance Analysis for Costs Control in Organizations”, International Journal of Economic Development Research and Investment (IJEDRI), 3(2), pp. 21–24. Available at: http://icidr.org.ng/index.php/Ijedri/article/view/814 (Accessed: 19 September 2024).