Somphob Jongruaysup และ Anusorn Teinsiriroek; Patcharin Namwong. (2004) Study on the Tillage Systems on Physical Soil Properties under Sugarcane Cultivation. <i>Thai Agricultural Research Journal</i>, <i>22</i>(1), 49-64.Somphob Jongruaysup และ Anusorn Teinsiriroek; Patcharin Namwong. "Study on the Tillage Systems on Physical Soil Properties under Sugarcane Cultivation". Thai Agricultural Research Journal 22 (2004):49-64.Somphob Jongruaysup และ Anusorn Teinsiriroek; Patcharin Namwong. Study on the Tillage Systems on Physical Soil Properties under Sugarcane Cultivation. Department of Agriculture:ม.ป.ท. 2004.