VARSHA, H.N. VERMA and. “Induction of Durable Resistance by Primed Clerodendrum Aculeatum Leaf Extract”. Indian Phytopathology, vol. 47, no. 1, Jan. 2002, pp. 19-22, https://epubs.icar.org.in/index.php/IPPJ/article/view/20978.