Piya Duangpatra and Tassanee Attanandana (1992) “Effects of High Water-Absorbing Polymer on Growth and Drought Endurance of Cashew Nut, Green Mango and Para-rubber Under Tropical Field Conditions”, Agriculture and Natural Resources. Bangkok, Thailand, 26(1), pp. 95–102. available at: https://li01.tci-thaijo.org/index.php/anres/article/view/241760 (accessed: 17 September 2026).