Parameswaran Pillai, E. (1997). Vidyabhyasa manasathram (Educational psychology) (14th ed.). Prathibha Books.
শিকাগো স্টাইলে সাইটেশনParameswaran Pillai, Erumeli. Vidyabhyasa Manasathram (Educational Psychology). 14th ed. Mavelikara: Prathibha Books, 1997.
এমএলএ সাইটেশনParameswaran Pillai, Erumeli. Vidyabhyasa Manasathram (Educational Psychology). 14th ed. Prathibha Books, 1997.
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