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		No cover image available No cover image available පියාජේගේ මනෝ විද්‍යා න්‍යාය by කොතලාවල, එල්සි. Language: Sinhala Language Publication details: Colombo : Lake House, 1979Title translated: Piyajege mano vidya nyaya.Availability: Items available for loan: Main Library (12) . Items available for reference: Main Library Not for loan (3) . Collection(s): Lending Collection Call number: 136.7 KOT. Add to cart (remove)
		No cover image available No cover image available ළමා මනෝවිද්‍යාව : ජින් පියාජේගේ ප්‍රජානන වර්ධනය by අබේපාල, රෝලන්ඩ්. Language: Sinhala Language Publication details: Kottawa : Sara Publications, 2009Title translated: Lama manovidyava : gin piyajege prajanana vardhanaya.Availability: Items available for loan: Main Library (2) . Not available: Checked out (3). Collection(s): Lending Collection Call number: 155.413 ABE. Add to cart (remove)
		No cover image available No cover image available An outline of Piaget's developmental psychology for students and teachers by Beard, Ruth M. Language: English Language Publication details: London : Routledge and Kegan Paul, 19691970 ) Availability: Not available: Withdrawn (1). Add to cart (remove)

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