A comparison of costs and yield of timber producers farmers. LaTeX format Rubber sheets and rubber rolls the Cup year 2556 (2013) output/57 Ron phibun district, Nakhon SI thammarat.
A comparison of the costs and benefits of the farmers who produce rubber. In the form of latex rubber sheets and rubber cup lump 2556/57 crop year, Nakhon Si Thammarat. Nakhon Si Thammarat
Comparison of cost and benefit of the farmers in the form of latex rubber, rubber sheet, and the rubber cup lump, year productivity 2556 / 57 Ron phibun district. Nakhon Si Thammarat.