000 00296nam a2200121Ia 4500
100 _aAgarwal, Reena & Nagar, Nandita
020 _a978-81-7835-863-5
942 _cBK
245 _aCooperative learning
260 _aKalpaz Publications, New Delhi
_c2011
082 _a371.3 Aga/Nag
300 _a210
999 _c47598
_d47598