Chakarn Saengruksawong และ Soontorn Khamyong. (2013) Growth biological production and carbon stock potentials of Para rubber plantations on Phon Phisai and Chakkarat soil series Nong Khai and Bueng Kan provinces. Chiang Mai University:ม.ป.ท.Chakarn Saengruksawong และ Soontorn Khamyong. 2013. Growth biological production and carbon stock potentials of Para rubber plantations on Phon Phisai and Chakkarat soil series Nong Khai and Bueng Kan provinces. ม.ป.ท.:Chiang Mai University;Chakarn Saengruksawong และ Soontorn Khamyong. Growth biological production and carbon stock potentials of Para rubber plantations on Phon Phisai and Chakkarat soil series Nong Khai and Bueng Kan provinces. ม.ป.ท.:Chiang Mai University, 2013. Print.