and P. NAYAK, A.K. MUKHERJEE*, N.K. MAHANA. “In Situ Estimation of Lesion Area of Rice Blast Disease Using Linear Measurements”. Indian Phytopathology, vol. 50, no. 3, Jan. 2002, pp. 431-3, https://epubs.icar.org.in/index.php/IPPJ/article/view/19888.