Alberti, Robert E., author
Stand up, speak out, talk back
Pocket Books, 1975
 Buku Teks
Hering, Elaine Lin, author
Unlearning silence : how to speak your mind, unleash talent, and live more fully
Penguin Life, 2024
 Buku Teks
Hering, Elaine Lin, author
Unlearning silence : how to speak your mind, unleash talent, and live more fully
Penguin Life, 2024
 Buku Teks
Back, Kurt W., author
Social psychology / Kurt W. Back
John Wiley & Sons, 1977
 Buku Teks
Journeys in social psychology : looking back to inspire the future
edited by Robert Levine, Aroldo Rodrigues
Psychology Press, Taylor & Francis Group, 2008
 Buku Teks
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