Buamool, P. and Phakamas, N. (2018) “Effects of different forms nitrogen fertilizer on growth and yield of four tropical pasture grasses ”, International Journal of Agricultural Technology, 14(7), pp. 1065–1076. available at: https://li04.tci-thaijo.org/index.php/IJAT/article/view/8473 (accessed: 24 September 2026).