00298nam a22001217a 4500020001800000041001300018082001400031100002100045245004000066250001300106260004800119300000900167  a9789937303576  aEnglish   a540bPRI   aGewali, Mohan B.  aPrinciples of Chemistry-I Grade XI   a1st ed.   aKathmandu bBuddha Publications c2020 AD.   a580p