Solin K, Sutikno. Principles of Politety in Indonesian Language in Speech of Students of Class 5 Madrasah Ibtidaiyah Negeri 1 Dairi Sidikalang Sub-District Dairi District Academic Year 2022-2023. Int. j. soc. sci. humanit. invent. [Internet]. 2023 Mar. 21 [cited 2024 May 30];10(03):7795-804. Available from: https://valleyinternational.net/index.php/theijsshi/article/view/3887