00394nam a22001577a 450000500170000002000180001704100130003508200150004810000250006324500420008825000120013026000420014230000090018470000240019370000190021720260616130141.0  a9789937774499  aEnglish   a004bMAL-t  aMallik, Lal Krishna   aTextbook of computer science grade xi  a1st ed.  aKathmandu bHeritage Publisher c2079  a450p  aSah, Ramesh Prasad   aDangi, Roshan