Bormann, Ernest G.
Harper & Row, 1965
Buku Teks
Hybels, Saundra
D. Van Nostrand, 1974
Buku Teks
O`Shaughnessy, Douglas, 1950-
Addison-Wesley, 1987
Buku Teks
Dori Wuwur Hendrikus
Kanisius, 1991
Buku Teks
Littlejohn, Stephen W.
Scott, Foresman and Company, 1987
Buku Teks