Susanti R, . S, . D, Rohmadi M. Politeness Principles and Strategies in Language Used By President Joko Widodo to Indonesian Citizens, Through Vlog #JOKOWIMENJAWAB. KSS [Internet]. 2018Jul.26 [cited 2024May16];3(9):798–806. Available from: https://knepublishing.com/index.php/KnE-Social/article/view/2744