Jeffrey B. Halter ... [and others]
McGraw-Hill, 2009
Buku Teks
Mooney, Ruth A., author
Delmar Publishers, 1996
Buku Teks
Regula H. Robnett , Walter C. Chop, edited
Jones and Bartlett Learning, 2015
Buku Teks
edited by Chris Phillipson and Dale Dannefer
SAGE Publications, 2010
Buku Teks
Siti Setiati, author
Universitas Indonesia, 2013
UI - Pidato