Krisda Samphantharak and Putu Darsana (2004) “Performance of Testcross Hybrids of Semi-exotic Inbred Lines Contained Different Proportions of U.S. Corn Belt Germplasm”, Agriculture and Natural Resources. Bangkok, Thailand, 38(3), pp. 279–289. available at: https://li01.tci-thaijo.org/index.php/anres/article/view/242963 (accessed: 10 October 2026).