Kerala (India). State Planning Board. Evaluation Division. (1976). High yielding varieties programme in Kerala, virippu paddy, 1973-74: An evaluation study. Evaluation Division, State Planning Board, Government of Kerala.
Lua i Stíl Chicago (17ú heag.)Kerala (India). State Planning Board. Evaluation Division. High Yielding Varieties Programme in Kerala, Virippu Paddy, 1973-74: An Evaluation Study. [Trivandrum]: Evaluation Division, State Planning Board, Government of Kerala, 1976.
Lua MLA (8ú heag.)Kerala (India). State Planning Board. Evaluation Division. High Yielding Varieties Programme in Kerala, Virippu Paddy, 1973-74: An Evaluation Study. Evaluation Division, State Planning Board, Government of Kerala, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.