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Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2002
UI - Tesis Membership
John Baer, James C. Kaufman, Roy F. Baumeister, editor
Oxford University Press, 2008
Buku Teks SO
Lewis, Clarence Irving
Dover, 1956
Buku Teks SO
Banerjee, Nikunja Vihari
George Allen and Unwin, 1958
Buku Teks SO
Baruss, Imants
Purdue Univ.Press , 1996
Buku Teks SO