Pankhaw, Oraphan, and Santi Suksard. 2022. “Production and Marketing of Teak Products at Namcham Sub-District, Sung Men District, Phrae Province”. Thai Journal of Forestry 33 (1). Bangkok, Thailand:28-35. https://li01.tci-thaijo.org/index.php/tjf/article/view/255402.