Siagian, D., Tampubolon, J., Sirait, K. and Alhasanah, S. 2026. The Role of the KTU Clerk in Mail Administration Activities at PT PP London Sumatera Indonesia Tbk Begerpang Estate. Jurnal Multidisiplin Dehasen (MUDE). 5, 4 (Oct. 2026), 2189-2200. DOI:https://doi.org/10.37676/mude.v5i4.12117.