Sahlan, R. and Abdullah, M. R. B. (2007) “Perdagangan Luar Malaysia dalam Konteks AFTA, NAFTA Dan EU: Pendekatan Model Graviti”, International Journal of Management Studies, 14(1), pp. 167–198. Available at: https://e-journal.uum.edu.my/index.php/ijms/article/view/9825 (Accessed: 13 May 2024).