Yanuar, Muhammad Dedy, and Ali Muhammad. 2017. “Upaya Organization for Security and Co-Operation in Europe Dalam Menangani Konflik Di Ukraina Timur”. Jurnal International & Diplomacy Universitas Satya Negara Indonesia 3 (1):121-38. https://jurnalhiusni.org/index.php/idu/article/view/178.