Golay, Frank H.
Cornell University Press, 1961
Buku Teks
Alexander, Ralph S.
Ginn and Co. , 1953
Buku Teks
Golay, Frank H.
Cornell University, 1976
Buku Referensi
Institute of sontheast Asian's Studies, 2000
Buku Teks
University of Wisconsin Press, 1969
Buku Teks