V.P. GUPTA, VINEET KUMAR* and. “Scanning Electron Microscopy of Ingress and Infection of Helminthosporium Tetramera in Mulberry”. Indian Phytopathology, vol. 55, no. 3, Sept. 2002, pp. 306-7, https://epubs.icar.org.in/index.php/IPPJ/article/view/18735.