J.P. Verma, N. P. J. G. J. V. R. S. (2004). Activation of peroxidase and phenylalanine ammonia lyase in cotton by chemical and biological inducers. Indian Phytopathology, 57(1), 07-11. https://epubs.icar.org.in/index.php/IPPJ/article/view/17613