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කෘෂිකර්ම පශ්චාත් උපාධි ආයතනය - පේරාදෙණිය

Postgraduate Institute of Agriculture was established with the objective of developing in-country capacity for postgraduate education in agriculture


(භෞතික පන්ති පවත්වනු ලැබේ)

 Edexcel and Cambridge Chemistry 

online chemistry
online chemistry