TY - GEN AU - Wimalasena , B.H.D.J.H. AU - Pereira , W.P.D. AU - Fernando , J.N.O. AU - Kularatne , K.W.S. AU - Munasiri , B. TI - Physical chemistry - part I : reaction kinetics and photo chemistry U1 - 541.394 PY - 1989/// CY - Nugegoda PB - Open University KW - Chemistry KW - Photochemistry KW - Reaction Kinetics ER -