Sihombing, J. S. M. T. (1987). Effectiveness of Gestalt-oriented and self-concept enhancement programs in developing achievement motivation of high school students: A comparative study. Animo Repository.
Chicago Style CitationSihombing, Junian Sahala Maringan Tua. Effectiveness of Gestalt-oriented and Self-concept Enhancement Programs in Developing Achievement Motivation of High School Students: A Comparative Study. Animo Repository, 1987.
MLA引文Sihombing, Junian Sahala Maringan Tua. Effectiveness of Gestalt-oriented and Self-concept Enhancement Programs in Developing Achievement Motivation of High School Students: A Comparative Study. Animo Repository, 1987.
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