Keshari, Arvind, and Ranjana Gupta. “Five Species of Plant Parasitic Nematodes (Order: Tylenchidae) Affecting Vegetable Crops of Nepal”. International Journal of Life Sciences 10, no. 1 (February 10, 2016): 10-14. Accessed December 13, 2019. https://www.nepjol.info/index.php/IJLS/article/view/14515.