G.M. PADAGANUR, SURESH KUNKALIKER and. “Euphorbia Hirta, a New Collateral Host of Erysiphe Polygoni”. Indian Phytopathology, vol. 47, no. 4, Jan. 2002, pp. 439-44, https://epubs.icar.org.in/index.php/IPPJ/article/view/21141.