TY - BOOK TI - Cost of cultivation of agricultural crops : 2010 Yala PY - 2011/// CY - Peradeniya PB - Socio Economics and Planning Centre KW - Agricultural economics KW - Subsidiary food crops KW - Labour KW - Fertilizer KW - Paddy KW - Wage N1 - (Gifted by Socio Economics and Planning Centre, Peradeniya) ER -