00370nam a2200157Ia 4500003000500000008004100005020001000046040000900056041001200065082002400077100001900101245005400120250000900174260001500183650001400198NDCL180829s9999||||ii |||||||||||||| ||eng||  a13740  aNDCL  aEnglish  a370.1 bAJ216th ed  aAggarwal, J.C. 0aTheory and principles of educationcJ.C. Aggarwal  a13th  c2005b2013  aEducation