Krisda Samphantharak, and Putu Darsana. “Performance of Testcross Hybrids of Semi-exotic Inbred Lines Contained Different Proportions of U.S. Corn Belt Germplasm”. Agriculture and Natural Resources, vol. 38, no. 3, June 2004, pp. 279-8, https://li01.tci-thaijo.org/index.php/anres/article/view/242963.