N.D. JAMBHALE, T. PRADEEP* and. “Relationship Between Phenolics, Polyphenol Oxidase and Peroxidases and Resistance to Powdery Mildew in Zizhyphus”. Indian Phytopathology, vol. 55, no. 2, June 2002, pp. 195-6, https://epubs.icar.org.in/index.php/IPPJ/article/view/18695.