Susilo, Wilhelmus Hary, and Lili Suryaty. “Analysis Hybrid Model: An Influencing Marketing 3.0 to Purchasing on Postgraduate Program Institutions in Jakarta”. International Journal of Economics and Financial Issues 5, no. 1S (July 23, 2015): 165–171. Accessed March 29, 2024. https://www.econjournals.com/index.php/ijefi/article/view/1382.