Raven, Peter H.
Worth Publisher, 1986
Buku Referensi
Laetsch, Watson M.
Little, Brown, 1979
Buku Teks
Raven, Peter H.
Worth Publishers, 1992
Buku Teks
Woods, Joseph
Cambridge University Press, 2013
Buku Teks
Kaufman, Peter B.; Carlson, Thomas F.; Dayanandan, P.; Evans, Michael L.; Fisher, Jack B.; Parks, Clifford; Wells, James R.
Harper & Row, 1989
Buku Referensi