R.N. SINGH, A.T. KHAN and. “Effect of Pea Stunt Disease on Flowering, Podding, Grain Setting and Yield”. Indian Phytopathology, vol. 50, no. 2, Jan. 2002, pp. 282-4, https://epubs.icar.org.in/index.php/IPPJ/article/view/19826.