Simha, S.L.N.
Orient Longman , 1973
Buku Teks
Charlesworth, Harold Karr, author
The New Nusantara, 1959
Buku Teks
Woodworth, George Walter, author
McGraw-Hill, 1950
Buku Teks
edited by Charles J. Woelfel
Probus & Toppan, 1994
Buku Referensi
edited by, Glenn G. Munn, F.L. Garcia and Charles J. Woelfel
Salem Press, 1993
Buku Referensi