Boyce, P.J.
University of Queensland Press , 1977
Buku Teks
Boyce, Peter John
University of Queensland Press, 1977
Buku Teks
McCamy, James L.
Alfred A. Knopf, 1952
Buku Teks
Pratt, Julius W.
Prentice-Hall, 1965
Buku Teks
Stebbins, Richard P.
Harper & Row, 1963
Buku Teks