Singh, Vimla, and K. Shukla. “Effect of Papaya Ring Spot Virus (PRSV) Infection on Nitrogen, Protein and Carbohydrate Contents in Papaya”. Indian Journal of Horticulture, vol. 67, no. 03, Sept. 2010, pp. 301-5, https://journal.iahs.org.in/index.php/ijh/article/view/1783.