People's Bank (Sri Lanka). Research Dept. (1978). Trade and formation of sectors of production: The build-up of a Mahaweli economy. People's Bank, Research Dept..
Lua i Stíl Chicago (17ú heag.)People's Bank (Sri Lanka). Research Dept. Trade and Formation of Sectors of Production: The Build-up of a Mahaweli Economy. Colombo: People's Bank, Research Dept., 1978.
Lua MLA (8ú heag.)People's Bank (Sri Lanka). Research Dept. Trade and Formation of Sectors of Production: The Build-up of a Mahaweli Economy. People's Bank, Research Dept., 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.