OPEN Univeristy of Sri Lanka
Course of study leading to the degree of bachelor of science-level five-botany P - Nugegoda The Open University of Sri Lanka 1991 - 78 p.
169001
Plant pathology
580 / OPE
Course of study leading to the degree of bachelor of science-level five-botany P - Nugegoda The Open University of Sri Lanka 1991 - 78 p.
169001
Plant pathology
580 / OPE