00504cam a2200169ua 45000010005000000080039000050200018000440400009000620820010000711000030000812450068001112500009001792600056001883000027002446530014002716530049002852249110805n        ii  |||gr||||Z||||||eng  a81-259-1056-5  cMAIN  a371.3  aAggarwal, J. C.,eAuthor.1 aPrinciples, methods & techniques of teachingcby J. C. Aggarwal  a2nd.  aNew Delhi:bVikas Publishing house pvt. ltd,c2006.  axi; 427p:bill;c23cm.  aEducation  aPrinciples, methods & techniques of teaching