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Pnk De Silva , P Stevens , Sjr Simons
International Shale Gas and Oil Journal , 2 (3) pp. 17-28. (2014)
A Kalubowila , P H G J De Silva
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NP Madarasingha , P De Silva , K Satgurunathan
Ceylon Medical Journal 56 ( 1) 18 -22
R Abraham , A Adan , L Alden , A Aleman
Personality and Individual Differences 34 1331 -1333
P De Silva , A Amarasinghe , S Jayasinghe , RMSK Ratnayake
P Bandaranayake , P De Silva
Faculty of Technology Rajarata University of Sri Lanka
UDHJ Ranaweera , P De Silva , WI Amarasinghe
P De Silva , MN Gunawardana , RASU Ranasinghe , R Premasiri
A De Silva , P De Silva
Lyriocephalus 1 ( 1-2) 48 -51
P De Silva
P De Silva
P De Silva
P De Silva
P De Silva