R. C. GUPTA and R. P. GUPTA, “Epidemiological studies on Stemphylium vesicarium causing stemphylium blight disease of onion (Allium cepa)”, Indian J Agri Sci, vol. 84, no. 9, pp. 1091–5, Sep. 2014, doi: 10.56093/ijas.v84i9.43461.