OPEN University of Sri Lanka Abeysekera, A,M. Karunatilaka, S.
Course of study leading to the degree of bachelor of science level 4, PSU 2114-o /by A.M.Abeysekera, S.Karunatilaka - Nugegoda The Open Univeristy of Sri Lanka 1986 - 161 p.
Includes glossary.
141617
547 / OPE
Course of study leading to the degree of bachelor of science level 4, PSU 2114-o /by A.M.Abeysekera, S.Karunatilaka - Nugegoda The Open Univeristy of Sri Lanka 1986 - 161 p.
Includes glossary.
141617
547 / OPE