Fitria Purnamasari, Sukartono, Fitri Puji Rahmawati, Minsih, & Choiriyah Widyasari. (2022). Social Harmony of Society as a Source of Politeness Learning for Elementary School Students. Jurnal Ilmiah Sekolah Dasar, 6(4), 627–636. https://doi.org/10.23887/jisd.v6i4.53698