Mpofu, N. ., and M. C. . Maphalala. “Pedagogical Practices Involved in Integrating English Language Skills in Subject-Specific Learning: A Case of High School Teachers”. International Journal of Education and Practice, vol. 8, no. 4, Sept. 2020, pp. 664-75, doi:10.18488/journal.61.2020.84.664.675.