00457nam a22001697a 450000500170000002000180001704100130003508200150004810000230006324500390008626000540012530000090017965000330018870000240022170000190024570000230026420260624073406.0  a9789937120593  aEnglish   a540bYAD-p  aYadav, Paras Nath   aPrinciples of chemistry grade XII   aKathmandu bAdvance Saraswati Prakashan c2081 BS  a648p  ascience,  organic chemistry   aChaudhary, Upendra   aThapa, Bishal   aSubedi, Bhesh Raj