Educational psychology: the principles of learning in teaching / Arden N. Frandsen. - New York: McGraw-Hili Book Company, Inc., Kogakusha Company, Ltd., 1961.
Tjitendero, DR Mose Penaani
http://192.168.151.11//educational-psychology-principles-of-learning-in-teaching-arden-n-frandsen-new-york-mcgraw-hili-book-company-inc-kogakusha-company-ltd-1961
PA 3/5/3/139