A critical guide to management training media
edited by William Ellet
Harvard Business School Publishing, 1997
 Buku Referensi
Wright, Andrew, 1937-
Pictures for language learning
Cambridge University Press , 1989
 Buku Teks
Principles of visual Anthropology / editor, Paul Hockings
Mouton Publishers, 1975
 Buku Teks
Lonergan, Jack
Video in language teaching
Cambridge University Press , 1994
 Buku Teks
Cameron, Susan, 1958-
Perfecting your english pronunciation
McGraw-Hill, 2012
 Buku Teks SO