Udomsak, B. , Kositcharoenkul, N., Bua-ar, S. , Puawongphat, B. and Rungjang, R. 2017. Efficiency of Bioproduct from Bacillus subtilis Isolate 20W1 to Control Alternaria brassicicola a Causal Agent of Chinese Kale Leaf Spot. Thai Agricultural Research Journal. 35, 1 (Jan. 2017), 2–13. DOI:https://doi.org/10.14456/thaidoa-agres.2017.19.