Emerald Publishing Limited, 2019
eBooks
Kornblum, William
Harcourt Brace College Publishers, 1997
Buku Teks SO
Kornblum, William
Wadsworth and Cengage Learning, 2012
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Bryjak, George J
Allyn and Bacon, 1994
Buku Teks
Mahira Syafana Kuswanto
Fakultas Psikologi Universitas Indonesia, 2023
UI - Tesis Membership