Sayan Tudsri and Pensri Sornprasit (1988) “Response of Four Tropical Pasture Grasses to Nitrogen Application”, Agriculture and Natural Resources. Bangkok, Thailand, 22(1), pp. 37–44. available at: https://li01.tci-thaijo.org/index.php/anres/article/view/242330 (accessed: 18 September 2026).