Soeparno, W. S. I., D. R. S. Simatupang, S. Fauzie, W. S. Hasibuan, and H. R. H. Gurning. “The Introduction of North Sumatera Culture to Grow The Spirit of Nationalism”. CARADDE: Jurnal Pengabdian Kepada Masyarakat, vol. 7, no. 2, Dec. 2024, pp. 417-22, doi:10.31960/caradde.v7i2.2020.