Sirait, N. S., and S. Panggabean. “A STUDY OF SYNTACTIC FUNCTIONS IN PERSUASIVE TEXTS WITH THE THEME OF REGIONAL LANGUAGE PRESERVATION IN THE PERSPECTIVE OF INDONESIAN GRAMMAR”. Jurnal Kata: Bahasa, Sastra, Dan Pembelajarannya, vol. 14, no. 1, Apr. 2026, pp. 111-7, doi:10.23960/kata.v14i1.2152.