and M.R. KHAN, JHILMIL GUPTA, B.P. SINGH. 2003. “Aggressiveness of A1 and A2 Mating Types of Phytophthora Infestans Affecting Potatoes in India”. Indian Phytopathology 56 (1): 82-84. https://epubs.icar.org.in/index.php/IPPJ/article/view/18247.