Panjaitan, R., Hutauruk, B.S. and Dhillon, B.P.S. 2026. The Perceptions Of Youth Community On The Use Of Slang Language On The Maintenance Of Mother Tongue In Pematangsiantar. Jurnal Kajian Ilmu Pendidikan (JKIP). 7, 3 (Apr. 2026), 1483-1492. DOI:https://doi.org/10.55583/jkip.v7i3.2284.