Greaves, I. C. (Ida Cecil), 1907-, author
George Allen & Unwih , 1935
Buku Teks
Duchacek, Ivo D., author
Holt, Rinehart and Winston, 1965
Buku Teks
Roger Tol, Kees van Dijk, Greg Acciaioli, editor
KITLV Press , 2000
Buku Teks
Udy, Stanley H., author
Hraf Press, 1959
Buku Teks
Barash, David P., author
Henry Holt, 2003
Buku Teks