Milia, Jana, et al. “ANALYSIS OF DEFENSE COOPERATION AGREEMENT BETWEEN INDONESIA AND SINGAPORE IN 2007–2017 THROUGH DEFENSE DIPLOMACY GOAL VARIABLE”. Jurnal Pertahanan: Media Informasi Tentang Kajian Dan Strategi Pertahanan Yang Mengedepankan Identity, Nasionalism Dan Integrity, vol. 4, no. 2, Aug. 2018, pp. 104-19, doi:10.33172/jp.v4i2.283.