000 00321nam a2200145Ia 4500
100 _aPal,Abhijit.Kumar
020 _a978-93-5074-72-9
365 _b1160
942 _cBK
654 _a
245 _aDistance education
260 _aNew Delhi
_bAbhijeet Publications
_c2013
082 _a371.35
300 _bHb
_aix,304
999 _c394233
_d394233
041 _aeng