Judul asli: An introduction to psychology of religion. Bibliografi hlm. 128-129.
Judul Asli: Educational psychology: theory and practice, 9 th ed.
Paul Chambers & Robert Timlin.
Judul asli: Perspectives on social change.
Judul asli: How to recrut good managers and how to keep them.
Judul asli: How to recrut good managers and how to keep them.