and R.S. JAMWAL, B.R. THAKUR, A.S. KAPOOR. 2002. “Varietal Resistance of Pea to Powdery Mildew in Dry Temperate Zone of Himachal Pradesh”. Indian Phytopathology 49 (1): 92-93. https://epubs.icar.org.in/index.php/IPPJ/article/view/20043.