Rewoldt, Stewart H.
Homewood: Richard D. Irwin, 1969
Buku Teks
Guiltinan, Joseph P., author
McGraw-Hill, 1991
Buku Teks
Komaruddin Sastradipoera, author
Kappa-Sigma, 2003
Buku Teks
Guiltinan, Joseph P., author
McGraw-Hill, 1985
Buku Teks
Peter, J. Paul, author
McGraw-Hill, 2004
Buku Teks