00421nam a22001697a 4500020001800000041001300018082001700031100002900048245003200077250001100109260004500120300000900165650001200174700001700186700002700203700002100230  a9789937941389  aEnglish   a570.724bPRA  aGhimire, Narayan Prasad   aPractical Biology Grade XI   a4th ed  aKathmandu bHeritage Publishers c2021AD  a328p  ascience  aPaudel, Alok  aShrestha, Indira Devi   aDhakal, Navendu