00306nam a2200097Ia 4500008004100000100002000041245007300061260004800134260000900182999001700191170620s9999    xx            000 0 und d  aAggarwal- J. C. 0aEssentials of Examinations System- Evaluation- tests and measurement  bNew Delhi- Vikas Publishing House Pvt. Ltd.  c2008  c24959d24959