Thongchuang, M., Ekchaweng, K., Kaboun, K. and Chinpongpanich, A. (2022) “Influence of Harvesting Period of Three Rice Seedlings on DPPH Radical Scavenging Activity”, PKRU SciTech Journal, 6(1), pp. 34–46. available at: https://ph01.tci-thaijo.org/index.php/pkruscitech/article/view/247688 (accessed: 11 September 2026).