Clark, Mary E.
W.B. Saunders, 1973
Buku Teks
Simpson, George Gaylord
Harcourt Brace & World, 1964
Buku Teks
Pattee, Howard Hunt
[Springer, ], 2012
eBooks
Saleh Alkatiri
Airlangga University Press, 1996
Buku Teks
Marshall, P.T.
Macdonald and Evans, 1974
Buku Teks