Dr.Vijay Prakash Gupta. “Drip Marketing (A Powerful Marketing Opportunity for Nurturing Customers)”. JOURNAL OF MANAGEMENT, SCIENCES, OPERATION & STRATEGIES 4, no. 2 (August 8, 2023): 22–28. Accessed September 14, 2025. http://journal.swaranjalipublication.co.in/index.php/JMSOS/article/view/305.