- screening of the study area. Method of screening in choice of study area preliminary scope research. To analyze the province that choice choose in the northeast.The selection criteria from the province area for growing high and no electrical plant biological mass. The selection of the study area the area Bangkan
.- collect primary data and secondary data. On the part of the data for this research. By using the data from the survey data of primary (Primary Data) including secondary data. (Secondary Data) from various organizations, such asThe Rubber Research Institute, Department of agriculture, Sindhi, etc.!
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