and S.K. GANDHI, P. KISHORE VARMA* , SHER SINGH. “Variability Among Alternaria Solani Isolates Causing Early Blight of Tomato”. Indian Phytopathology 60, no. 2 (May 26, 2007): 180–186. Accessed June 25, 2026. https://epubs.icar.org.in/index.php/IPPJ/article/view/12957.