G. SHARMA*, “Impact of different cropping sequences on the population density of phytoparasitic nematodes in the farmer’s field”, Indian Phytopath., vol. 60, no. 1, pp. 95–98, Feb. 2007, Accessed: Oct. 26, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IPPJ/article/view/12925