by Buncha Somboonsuke(Prince of Songkla University. Hat Yai Campus, Songkhla (Thailand). Faculty of Natural Resources. Department of Agricultural Development), Prawat Wetayaprasit(Prince of Songkla University. Hat Yai Campus, Songkhla (Thailand). Faculty of Natural Resources. Department of Agricultural Development), Parinya Chernchom(Prince of Songkla University. Hat Yai Campus, Songkhla (Thailand). Faculty of Economics. Department of Agricultural Economics), Kanokporn Pacheerat(Prince of Songkla University. Hat Yai Campus, Songkhla (Thailand). Faculty of Economics. Department of Agricultural Economics)
Published in Witthayasan Kasetsart (Sakha Sangkhommasat) (01.05.2011)