00373nam a2200121Ia 4500008004100000040001700041041001200058082001900070100001600089245012700105260000900232300001000241230917s9999||||xx |||||||||||||| ||und||  e227296aMAIN  aEnglish  a372.35 K 178 C  aKavita Rani 0aComparative study of the effectiveness of concept attainment model and traditional method on pupils achivement in biology.  c2013  a64 p.