K. Warner Schaie, Sherry L. Willis, editor ; Bob G. Knight, Becca Levy, Denise C. Park, associate editors
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Buku Teks
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Buku Teks
edited by Shirley Fisher and James Reason
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Buku Referensi
Kausler, Donald H.
Springer , 1991
Buku Teks
edited by John Field, Ronald J. Burke and Cary L. Cooper.
SAGE, 2013
Buku Referensi