00293nam a22001097a 4500003000400000005001700004020001800021040002200039082000800061245009200069260002200161OSt20260508113214.0  a9789937912389  cSurya Publication  a570  aPractical Biologyb:Grade XI and XIIcby Ghimire, Narayan Prasad/ Shrestha, Indira Devi  bSurya Publication