H.N. VERMA, NEETA SRIVASTAVA and. “Chenopodium Murale Leaf Extract, a Potent Virus Inhibitor”. Indian Phytopathology, vol. 48, no. 2, Jan. 2002, pp. 177-9, https://epubs.icar.org.in/index.php/IPPJ/article/view/20712.