Salsabillah, E., and Mohamad Arief Rafsanjani. “Problematic Smartphone Use (PSU) and Learning Outcomes: Learning Motivation As a Mediator”. JMET: Journal of Management Entrepreneurship and Tourism, vol. 2, no. 2, July 2024, pp. 284-95, doi:10.61277/jmet.v2i2.145.