00390nam a2200097Ia 4500008004100000040002900041050002500070100002600095245013700121260003400258230222s9999||||xx |||||||||||||| ||und||  cChuka University Library  aTHE QA 11bM88 2013   aMuthomi, Mercy Wanja. 0aEffectiveness of a differentiated instruction on attitude and achievement in mathematics in secondary schools in Meru county Kenya.   aCHUKA UniversitybChukac2013