Kumar, Anil, et al. “Influence of AM Fungi and Inorganic Phosphorus on Fruit and Root Characteristics, Root Colonization and Soil Phosphorus in Okra-Pea Cropping System in Himalayan Acid Alfisol”. Indian Journal of Horticulture, vol. 73, no. 02, June 2016, pp. 213-8, https://journal.iahs.org.in/index.php/ijh/article/view/1576.