Orlik, Peter B.
Broadcast/cable copywriting
Allyn & Bacon, 1994
 Buku Teks
Anderson, Richard C.
Management practices
McGraw-Hill, 1960
 Buku Teks
Husson, Samir S.
Microprogramming: principles and practices
Printice-Hall, 1970
 Buku Teks
Rippin, Andrew
Muslims: their religious beliefs and practices
Routledge, 1990
 Buku Teks
Haimann, Theo
Supervision : concepts and practices of management
South-Western Pub., 1982
 Buku Teks