edited by George W. Hoffman ; contributors, Christopher Shane Davies ... [and others]
Wiley, 1983
Buku Teks SO
Peters, Gary L.
Kendall/Hunt, 1983
Buku Teks
Walmsley, D.J.
Longman, 1993
Buku Teks
Boyce, Ronald Reed
John Wiley & Sons, 1982
Buku Teks SO
Duncan, Otis Dudley
The Free Press of Glencoe, 1961
Buku Teks SO