, Management Department, Faculty of Liberal Arts and Management Sciences, Prince of Songkla University, Surat Thani Campus, Surat Thani 84000, Thailand

• Walailak Journal of Science and Technology (WJST) Vol. 14 No. 7 (2017): Natural Rubber, Oil Palm and Rice - Research Article
  Determination of Nitrogen and Phosphorus Requirement of the RRIM 600 and RRIT 251 Young Rubber Trees
  Abstract  PDF