Ruesch, Jurgen
Nonverbal communication : notes on the visual perception of human relations
UCLA, 1970
 Buku Teks SO
Applications of nonverbal communication
edited by Ronald E. Riggio and Robert S. Feldman
Lawrence Erlbaum Associates, 2005
 Buku Teks SO
Ellgring, Heiner
Nonverbal communication in depression
Cambridge University Press, 2008
 Buku Teks SO
Nonverbal communication science and applications
edited by David Matsumoto, Mark G. Frank, Hyi Sung Hwang
Sage, 2013
 Buku Teks SO
Roberts, Sam.
Human senses: touch and vision
BBC Worldwide Limited, 2004
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