Anta Pratama Ginting, and Indrawati Indrawati. “The Effect of Personal Selling, Social Media Advertising and Sales Promotion on Purchasing Decision : Case at Orbit Telkomsel Sumbagteng Region”. Digital Innovation : International Journal of Management, vol. 1, no. 4, Sept. 2024, pp. 127-43, doi:10.61132/digitalinnovation.v1i4.95.