Khamphirapaeng, P., Cheewangkoon, R., McGovern, R. J., Wong, S. M., and To-Anun, C. “Detection of tobacco mosaic virus in petunia and tobacco cells using inclusion body staining”. International Journal of Agricultural Technology, vol. 13, no. 2, Mar. 2017, pp. 163-8, https://li04.tci-thaijo.org/index.php/IJAT/article/view/6724.