M. WAJID KHAN, M.K. and (2002) “Effect of ozone on root colonization by VAM fungi and root nodulation on blackgram”, Indian Phytopathology, 55(3), pp. 264–268. Available at: https://epubs.icar.org.in/index.php/IPPJ/article/view/18724 (Accessed: 26 October 2025).