Sayan Tudsri and Pensri Sornprasit (1993) “Effects of Utilization Systems, Planting Methods and Type of Grass on Pasture Production of Centro and Hamata Mixed with Ruzi and Para on a Small Dairy Farm Conditions 1. Establishment and Survival”, Agriculture and Natural Resources. Bangkok, Thailand, 27(1), pp. 6–13. available at: https://li01.tci-thaijo.org/index.php/anres/article/view/241545 (accessed: 17 September 2026).