Artikel Jurnal
by Lee-Jay Cho ... [and others]
The Center for Southeast Asia Studies, 1980
Buku Teks SO
National Academy of Sciences-National Research Council , 1963
Buku Teks
Horn, Roger A
Cambridge University Press, 2013
Buku Teks SO
Horn, Roger A.
Cambridge University Press, 2010
Buku Teks SO