Sayan Tudsri and Unkana Harnbunjok (1993) “Effects of Utilization Systems, Planting Methods and Type of Grasses on Pasture Production of Centro and Hamata Mixed with Ruzi and Para on a Small Dairy Farm Conditions 3. Chemical Compositions”, Agriculture and Natural Resources. Bangkok, Thailand, 27(3), pp. 247–254. available at: https://li01.tci-thaijo.org/index.php/anres/article/view/241559 (accessed: 18 September 2026).