Lakkana Kaewvichit. (2000) A comparative study on cost-benefit of rice-fish culture under different rates of chemical fertilizer application in Bangplama district Suphanburi province. Mahidol University,:ม.ป.ท.Lakkana Kaewvichit. 2000. A comparative study on cost-benefit of rice-fish culture under different rates of chemical fertilizer application in Bangplama district Suphanburi province. ม.ป.ท.:Mahidol University,;Lakkana Kaewvichit. A comparative study on cost-benefit of rice-fish culture under different rates of chemical fertilizer application in Bangplama district Suphanburi province. ม.ป.ท.:Mahidol University, 2000. Print.