edited by Leo Goldberger and Shlomo Breznitz
The Free Press, 1982
Buku Teks
John Wiley & Sons , 2009
Buku Teks
edited by Shirley Fisher and James Reason
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Buku Referensi
edited by Cary L. Cooper, James Campbell Quick, Marc J. Schabracq
John Wiley & Sons, 2009
Buku Teks
World Vision, 2003
Buku Teks