Poomviset, P., S. Teejuntuk, and C. Vacharinrat. “Litter Production of Forest Communities Restored by Different Process at Lampang Province”. Thai Journal of Forestry, vol. 35, no. 1, Apr. 2016, pp. 45-61, https://li01.tci-thaijo.org/index.php/tjf/article/view/248151.