Bormann, Ernest G., author
Erlangga, 1991
Buku Teks
Bormann, Ernest G., author
Harper & Row, 1965
Buku Teks
Hybels, Saundra, author
D. Van Nostrand, 1974
Buku Teks
O`Shaughnessy, Douglas, 1950-, author
Addison-Wesley, 1987
Buku Teks
Dori Wuwur Hendrikus, author
Kanisius, 1991
Buku Teks