00525nam a2200181Ia 450000500170000000800410001702000180005804100080007608200190008410000230010324500730012626000320019930000190023165000330025065000350028370000170031888000080033520220704163021.0171205s2017||||xx ||||| |||||||| ||eng||  a9789327277043  aeng  a510.71bDHI-PE  aDhir, Rama Chandra 0aPedagogy of mathematicsc/ by Rama Chandra Dhir and Sunakar Das6880  aNew Delhi :bKalyani,c2017  avaries; 23cm.   aEducation-Study and teaching  aMathematics-Study and teaching  aDas, Sunakar  6245