V. Y. Sari Sigalingging, R. E. Pakpahan, and W. A. Simamora, “RELATIONSHIP OF ZOOM LEARNING METHODS WITH THE STRESS LEVEL OF THE TEACHER IN THE PERIOD COVID-19 PANDEMIC AT SMP NEGERI 6 MEDAN IN 2022”, Scientia, vol. 12, no. 02, pp. 2007-2010, May 2023.