Guoqi, Xu
Oxford University Press, 2017
eBooks
Maple, Frank F.
Sage, 1989
Buku Teks
G20 Seoul Sumit 2010, 2010
Majalah, Jurnal, Buletin
A. Shukor Rahman
A. Shukor Rahman, T.th.
Buku Teks
edited by Lauren B. Resnick, John M. Levine, and Stephanie D. Teasley
American Psychological Association, 1991
Buku Teks