Sharma, R., S. Awasthi, and K. Agarwal. “Spiritual Tourism Experience: A Study of Tourists Visiting Allahabad and Varanasi”. ADHYAYAN: A JOURNAL OF MANAGEMENT SCIENCES, Vol. 9, no. 01, June 2019, pp. 70-76, https://smsjournals.com/index.php/Adhyayan/article/view/2088.