K. N. BORA, M. DAS and. “Ultrastructural Studies on Infection Processes by Colletotrichum Acutatum on Guava Fruit”. Indian Phytopathology, vol. 51, no. 4, June 2002, pp. 353-6, https://epubs.icar.org.in/index.php/IPPJ/article/view/19705.