Graham, Walter W.
Littlefield, Adams & Co., 1965
Buku Teks
Garret, Alfred B.
Blaisdell, 1968
Buku Teks
Prichard, James W.
John Wiley & Sons, 1965
Buku Teks
Thibaut, John W.
John Wiley & Sons, 1967
Buku Teks
Neher, William W
Allyn and Bacon, 1993
Buku Teks