P.S, Buvaneswari, and Swetha M.S. “Digital Marketing: An Empirical Examination on Awareness and Perception OnIntrusive Marketing Strategies”. International Journal of Engineering and Technology 7, no. 4.39 (December 13, 2018): 793–795. Accessed May 30, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/26727.