Kungwon, P., Netwong, C., Porsoongnoen, S., and Reanwarakorn, K. 2022. “Chrysanthemum stunt viroid as a protective viroid isolate against Columnea latent viroid and Pepper chat fruit viroid in tomato plants”. International Journal of Agricultural Technology 18 (4):1601-18. https://li04.tci-thaijo.org/index.php/IJAT/article/view/8565.