Seehakrai, Maratreenung, Nisa Leksungnoen, and Suwimon Uthairatsamee. 2016. “Evaluating Inter-Row Light Intensity and Root Distribution of a Hevea Brasiliensis (Kunth) Müll. Arg. Plantation in Chiang Rai Province for Selective Planting of Inter-Row Trees”. Thai Journal of Forestry 35 (3). Bangkok, Thailand:147-59. https://li01.tci-thaijo.org/index.php/tjf/article/view/247057.