ชัยชนะ ณ. Effect of 2,4-Dichlorophenoxyacetic Acid for Callus Induction of Sew Deng Rice (Oryza Sativa L. Cultivars Sew Deng) and Nor Prae Rice (Oryza Sativa L. Cultivars Nor Prae). rusci 2019, 22, 30-35.