Trin Seramethakun และ Soontorn Khamyong. (2012) Plant species diversity soil characteristics and carbon stocks in subtype communities of natural pine forest Kunlaya Ni Wattana district Chaing Mai province. Chiang Mai University:ม.ป.ท.Trin Seramethakun และ Soontorn Khamyong. 2012. Plant species diversity soil characteristics and carbon stocks in subtype communities of natural pine forest Kunlaya Ni Wattana district Chaing Mai province. ม.ป.ท.:Chiang Mai University;Trin Seramethakun และ Soontorn Khamyong. Plant species diversity soil characteristics and carbon stocks in subtype communities of natural pine forest Kunlaya Ni Wattana district Chaing Mai province. ม.ป.ท.:Chiang Mai University, 2012. Print.