00337nam a2200097Ia 4500008004100000040001700041041001200058082001600070100002200086245013100108230917s9999||||xx |||||||||||||| ||und||  e197872aMAIN  aEnglish  a370.7 B227K  aBansal, Shakuntla 0aLearning under two methods of instruction- programmed learning and expositary method, in social sceince: an experimental study