Fitria Purnamasari, Sukartono, Fitri Puji Rahmawati, Minsih, and Choiriyah Widyasari. 2022. “Social Harmony of Society As a Source of Politeness Learning for Elementary School Students”. Jurnal Ilmiah Sekolah Dasar 6 (4):627-36. https://doi.org/10.23887/jisd.v6i4.53698.