00414nam a22001457a 450000500170000000800410001702000220005804100080008008200170008810000190010524500590012426000490018330000160023270000200024820260511104355.0260511b        |||||||| |||| 00| 0 eng d  a978-93-91818-28-9  aeng  a370.1bRAV/A  aRavi, S.Samuel  aA Comprehensive Study Of Educationc/by S. Samuel Ravi  aDelh:bPHI Learninig Private Limited;c2011.  axxvii,813p.  aRavi, S. Samuel