Mangal, S. (1994). Advanced educational psychology. Prentice -Hall of India.
Tohutoru Kātū Chicago (17th ed.)Mangal, S.K. Advanced Educational Psychology. New Delhi: Prentice -Hall of India, 1994.
Tohutoro MLA (9th ed.)Mangal, S.K. Advanced Educational Psychology. Prentice -Hall of India, 1994.
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