Gabel, Creighton
Holt, Rinehart and Winston, 1967
Buku Teks
Ingold, Tim, 1948-, author
Routledge, 2018
Buku Teks
Haviland, William A., author
Erlangga, 1988
Buku Teks
Foster, George M., author
Brown and Comp, 1969
Buku Teks
the Dushken Publishing, 1974
Buku Teks