Thitiprasert W, Kiratikunakorn C. Thailand Plant Variety Protection System. Thai Agric.Res.J. [internet]. 2003 Sep. 16 [cited 2026 Sep. 30];21(2):170-82. available from: https://li01.tci-thaijo.org/index.php/thaiagriculturalresearch/article/view/216466