Tadashi Nobuchi, Sirirat Janmahasatien, and Masaharu Sakai. “Seasonal Changes of Wood Formation and some Characteristics of Heartwood Formation in Teak (Tectona grandis L.) Plantation”. Agriculture and Natural Resources 30, no. 2 (June 30, 1996): 254–263. accessed August 28, 2026. https://li01.tci-thaijo.org/index.php/anres/article/view/241155.