Self-Directed Learning

"Physics Teaching by the Keller Plan at MIT"
B.A. Green, Jr.,Am. J. Phys. 39, 764 (1971) 39, p. 764 (1971).

"Self-Directed Learning"
R. Hiemstra, in T. Husen & T.N. Postlethwaite (Eds.), The International Encyclopedia of Education (second edition), Oxford, Pergamon Press, (1994).

"Fostering Self-Directed Learning in the University Setting"
S. Wilcox, Studies in Higher Education, 21(2), p. 165 (1996)