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Buku Teks
Hart, George Henry Charles, 1893-, author
The Netherlands Information Bureau, 1942
Buku Teks
Peou, Sorpong, author
Institute of Southeas Asian Studies, 2000
Buku Teks
Robinson, Kathryn, author
Routledge, 2009
Buku Teks
Feith, Herbert
Cornell University Press, 1968
Buku Teks