Sathasivampillai, K. (1977). Cost of production of some selected fruit crops in Sri Lanka. Govt. Dept. of Agriculture.
Lua i Stíl Chicago (17ú heag.)Sathasivampillai, K. Cost of Production of Some Selected Fruit Crops in Sri Lanka. Peradeniya: Govt. Dept. of Agriculture, 1977.
Lua MLA (8ú heag.)Sathasivampillai, K. Cost of Production of Some Selected Fruit Crops in Sri Lanka. Govt. Dept. of Agriculture, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.