Ponpituk, Y., S. Siri, P. Paansri, M. Safoowong, W. Suksavate, D. Marod, and P. Duengkae. “Effects of gap age on understory bird population in Mae Sa-Kog Ma Biosphere Reserve, Northern Thailand”. Agriculture and Natural Resources, vol. 56, no. 3, June 2022, pp. 645–656, https://li01.tci-thaijo.org/index.php/anres/article/view/255082.