Vorapitirangsree, V., Jaipin, P. ., Vorapitirangsree, S., Bumphenyoo, W., Kaewseeda, W., & Hanviriyapan, P. (2013). Production System Trial of Longon Low Canopy Pruning Orchard in Chiang Rai Province. Thai Agricultural Research Journal, 31(1), 69–77. https://doi.org/10.14456/thaidoa-agres.2013.19