00327    a2200121   4500082001600000100003700016245002600053260005900079300001600138650001600154650002200170650001300192  a515.43bOPE  aThe Open University of Sri Lanka  aTheory of integration  aNugegodabThe Open University of Sri Lankac1992g1992  a110p.c27cm  aMathematics  aIntegral calculus  aAnalysis