000 00249nam a2200097Ia 4500
008 240421s9999 xx 000 0 und d
100 _aYadav, K .K .
245 0 _aCompuer Shikshan
260 _aAgra
_bAgarwal
_c2013- 138p. Savera Books
942 _cBK
999 _c15424
_d15424