Yuyun Aulia and Febrina Dafit (2023) “Implementation Of A Character Education Program Through 5s Activities (Smile, Greetings, Sapa, Popular, Courteous) At State 100 Primary School Pekanbaru”, Primary: Jurnal Pendidikan Guru Sekolah Dasar, 12(5), pp. 1375–1387. doi:10.33578/10.33578/jpfkip.v12i5.10243.