Issariyaporn Dumrongrak. (2010) Fertilizer Management for Sustainable Rubber Plantation. <i>Journal of Yala Rajabhat University</i>, <i>5</i>(2), 183-199.Issariyaporn Dumrongrak. "Fertilizer Management for Sustainable Rubber Plantation". Journal of Yala Rajabhat University 5 (2010):183-199.Issariyaporn Dumrongrak. Fertilizer Management for Sustainable Rubber Plantation. Yala Rajabhat University:ม.ป.ท. 2010.