Patma Vityakon, Sunee Sae-Lee and Surasak Seripong (1993) “Effects of Tree Leaf Litter and Shading on Growth and Yield of Paddy Rice in Northeast Thailand”, Agriculture and Natural Resources. Bangkok, Thailand, 27(2), pp. 219–222. available at: https://li01.tci-thaijo.org/index.php/anres/article/view/241724 (accessed: 29 August 2026).