Strengthening Four National Values through the Socialization of MPR-RI Pillars to the Jambi–Yogyakarta Student Family Organization (KPJ-Y) in the Special Region of Yogyakarta: Empat Penguatan Nilai Kebangsaan Melalui Sosialisasi Pilar MPR- RI Kepada Organisasi Keluarga Pelajar Jambi - Yogyakarta (KPJ - Y) Di Daerah Istimewa Yogyakarta. JSBN 2026, 1 (2).