00323nam a22001217a 450000500170000002000180001708200130003510000200004824500450006826000260011330000200013950000420015920251122142843.0  a9789552317941  a574bWEE  aWeerakone, S.R.  aEnergy and Continuity of life : unit II/  aNawala:bOUSL,c2021.  a119 p. : ill. ;  aB.S.c : Foundation courses in science