Sadikin, L., Mariani, N., Nasrullah, N., & Arief, Y. (2020). Positive Politeness Strategies Implemented By The Lecturers Of Lambung Mangkurat University. LINGUA EDUCATIA, 2(1), 1-13. Retrieved from http://jtam.ulm.ac.id/index.php/gej/article/view/365