Sudirman, A., and A. C. Putra. “Disaster Diplomacy As an Alternative Approach for Indonesia’s Instrument of Foreign Policy in ASEAN”. Jurnal Ilmiah Hubungan Internasional, vol. 14, no. 1, May 2018, pp. 1-12, doi:10.26593/jihi.v14i1.2772.1-12.