Kresentia Sartini, I. Wardani, and D. Rusmawaty. “Social Competence of an English Lecturer at English Department of Mulawarman University”. E3L: Journal of English Teaching, Linguistic, and Literature , Vol. 2, no. 2, Sept. 2019, pp. 71 -76, doi:10.30872/e3l.v2i2.1996.