Nurhayati, N., Fathurrohman, F. and Rosidah, U.K. 2024. Literature Study: Development of Case-Based Teaching Materials through North Sumatra Culture . Proceeding of International Conference on Language Pedagogy (ICOLP). 4, 1 (Nov. 2024), 291–297. DOI:https://doi.org/10.24036/icolp.v4i1.231.