Nystrom, Harry
John Wiley & Sons, 1979
Buku Teks
Kaplan, David E., author
University of California Press , 2003
Buku Teks
ASEAN
ASEAN, 1978
Buku Teks
Abdul Rahman Abdul Aziz, author
Berita Publishing Sdn Bhd, 2009
Buku Teks
Abdul Rahman Abdul Aziz, author
Berita Publishing Sdn Bhd, 2009
Buku Teks