ANALYSIS OF COOPERATION DYNAMICS OF MEDAN-GWANGJU CITY IN THE FRAMEWORK OF SISTER CITY IN 2017-2021 Author : Rifqi Mulya Nauli Siregar (email: [email protected]) Adviser : Dr. Saiman Pakpahan, S.IP, MA Bibliography : 10 Books, 3 Documents, 7 Journals, 19 Websites, 2 Media Online International Relations Department Faculty of Social and Political Sciences, Riau University …