Beran, Jo A., author
John Wiley & Sons, 1982
Buku Teks
Beran, J.A., author
John Wiley & Sons, 2009
Buku Teks
Bettelheim, Frederick A., author
Harcourt Brace Jovanovich College, 1991
Buku Teks
Boschmann, Erwin, author
McGraw-Hill, 1990
Buku Teks
Cooper, Melanie M., author
McGraw-Hill, 2009
Buku Teks