Damanik, Harianty Harapanta, and Nenni Triana Sinaga. “English Teacher Performance in Teachin Learning Process During Pandemic Covid-19 at Duta Harapan School Medan”. Jurnal Pendidikan Edutama 9, no. 2 (July 20, 2022): 89–98. Accessed July 11, 2025. http://ejurnal.ikippgribojonegoro.ac.id/index.php/JPE/article/view/2365.