Baron, Robert A.
Understanding human relations : a practical guide to people at work
Allyn and Bacon, 1991
 Buku Teks SO
Human and ecological risk assessment
edited by Dennis J. Paustenbach
John Wiley & Sons, 2002
 Buku Teks SO
Harborne, J.B.
Introduction to ecological biochemistry
Academic Press Limited, 1993
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Germain, Carel Bailey
Human behavior in the social environment : an ecological
Columbia Universary Press, 1991
 Buku Teks SO
Civil Religion, Human Rights and International Relations: Connecting People Across Cultures and Traditions
Helle Porsdam, editor
Edward Elgar, 2012
 Buku Teks SO