Abdul Karim, Zulkefly; Zaidi, Mohd Azlan Shah; Ismail, Mohd Adib and Abdul Karim, Bakri (2011): Institutions and foreign direct investment (FDI) in Malaysia: empirical evidence using ARDL model. Unpublished.
Abdul Karim, Zulkefly; Zaidi, Mohd Azlan Shah and Jusoh, Mansor (2008): Variabiliti harga relatif dan inflasi : bukti empirikal di Semenanjung Malaysia, Sabah dan Sarawak. Published in: International Journal of Management Studies (IJMS) , Vol. 2, No. 15 (December 2008): pp. 165-182.