Anoop Gurunathan, K S Lakshmi. “UNDERSTANDING THE RELEVANCE AND SIGNIFICANCE OF DIFFERENT DIGITAL MARKETING FRAMEWORKS – A REVIEW”. European Economic Letters (EEL) 15, no. 2 (April 10, 2025): 324–337. Accessed March 14, 2026. https://eelet.org.uk/index.php/journal/article/view/2849.