edited by Mohsin S. Khan, Abbas Mirakhor
The institute for research and Islamic Studies, 1987
Buku Teks SO
Jackson-Moore, Elisabeth
Global professional , 2009
Buku Teks SO
Abd aziz Abd Jalal, editor
CERT publications Sdn. Bhd., 2011
Buku Teks SO
Thani, Nik Norzrul
Sweet & Maxwell Asia, 2003
Buku Teks SO
Thani, Nik Norzrul
Sweet & Maxwell Asia, 2010
Buku Teks SO