The Declining Rice-Fish Farming: A Case Study from North Kerala

od K.N. Nair, Vineetha Menon and R. Mahesh
Izdano 2004

Economic Evaluation of Paddy-Prawn Integrated Farming in Kerala

od R. Sathiadhas, K; K. P. Panlkkar; K. Satyavan and T. Jacob
Izdano 1989