ABHIMANYU and DHARMENDRA KUMAR, AJAY KUMAR*, S.P. PATHAK, JAI P. RAI,. “Variability Among Isolates of Alternaria Solani Causing Early Blight of Potato in Eastern Uttar Pradesh”. Indian Phytopathology, vol. 69, no. 4s, Dec. 2016, pp. 124-7, https://epubs.icar.org.in/index.php/IPPJ/article/view/71251.