00285nam a2200121Ia 4500003000400000040000800004082001600012100001700028245005500045260004200100300001000142365001100152LDD  cLDD  a371.35 Op21  aSangal, S.S. 0aOpen basic education bquality issuescS.S. Sangal  aNew DelhibNational open Schoolc2001  a434p.  b864.00