Subramaniam, S. D., Md. Nor, N. G. and Abdullah, A. Z. (2004) “Advertizing, Concentration and Profitability in Malaysian Manufacturing Revisited: A Simultaneous Equation Approach”, International Journal of Management Studies, 11(2), pp. 63–72. Available at: https://e-journal.uum.edu.my/index.php/ijms/article/view/9176 (Accessed: 3 May 2024).