Hasanah, N., M. Muhazir, S. W. . Simarmata, A. . Batubara, and R. Dina. “Effect of Interpersonal Communication Skills of Teachers in Teaching Teacher Motivation During the Pandemic COVID-19”. Journal Research of Social Science, Economics, and Management, vol. 1, no. 6, Jan. 2022, pp. 603-9, doi:10.59141/jrssem.v1i6.82.