Purwanto, M. B. “The Role of Teachers in the English Language Learning Process at SMP Karya Sembawa, Kab. Banyuasin, Sumatra Selatan”. Darussalam English Journal (DEJ), vol. 1, no. 2, Dec. 2021, pp. 171-95, doi:10.30739/dej.v1i2.1240.