Miller, Charles D.
Mathematics: an everyday experience/ Charles D. Miller
Scott, Foresman and Co., 1978
 Buku Teks
Hattersley, Michael E.
Management communication: principles and practice/Michael E. Hattersley, Linda McJannet
McGraw-Hill , 1997
 Buku Teks
Borich, Gary D.
Becoming a teacher: an inquiring dialogue for the beginning teacher / Gary D. Borich
Falmer Press, 1995
 Buku Teks
Lee, Linda D.
Safety management for health care facilities/ Linda D. Lee
American Hospital Association, 1996
 Buku Teks
Croft, William
Cognitive linguistics / William Croft and D. Alan Cruse
Cambridge University Press, 2004
 Buku Teks SO