00294nam a22001217a 4500020001800000041001300018082001300031100002100044245004100065250001200106260004500118300000900163  a9789937303576  aEnglish   a540bPRI  aGewali, Mohan B.  aPrinciples of Chemistry -I Grade XI   a1st ed   aKathmandu bBuddha Publicationsc2020 AD  a584p