Jenness, Diamond, author
National Museum of Canada, 1960
Buku Teks
Fletcher, Sydney E., author
Grosset & Dunlap, 1954
Buku Teks
McNickle, D`Arcy, author
J.B. Lippincott, 1949
Buku Teks
Arasaratnam, S., author
Dept. of Indian Studies, University of Malaya, 1966
Buku Teks
Kinsella, WP
Oberan Press, 1981
Buku Teks