N.S. BAINS and R.C. SHARMA, I. SHARMA*, A. SIRARI, B. RAJ,. “Heterothallism in Tilletia Indica: Implications for Physiological Specialization”. Indian Phytopathology, vol. 61, no. 1, Feb. 2008, pp. 34-42, https://epubs.icar.org.in/index.php/IPPJ/article/view/12692.