DAMA, L.B. “Effect of Naturally Occurring Napthoquinones on Root-Knot Nematode Meioidogyne Javanica”. Indian Phytopathology, vol. 55, no. 1, Jan. 2012, pp. 67-69, https://epubs.icar.org.in/index.php/IPPJ/article/view/18626.