1. Ahmad, Z. H. (1999). Change and adaptation in foreign policy: Malaysia’s foreign ministry. In B. Hocking (Ed.), Foreign ministries: Change and adaptation. Basingstoke: Macmillan.
2. Armstrong, D. (1999). The diplomacy of revolutionary states. In J. Melissen (Ed.), Innovation in diplomatic practice. Basingstoke: Macmillan.
3. Association of Southeast Asian Nations (ASEAN). (1993, July 23–24). Joint Communiqué of the twenty-sixth ASEAN ministerial meeting. Singapore. http://asean.org/?static_post=joint-communique-of-the-twenty-sixth-asean-ministerial-meeting-singapore-23-24-july-1993 . Accessed 10 Nov 2017.
4. Association of Southeast Asian Nations (ASEAN). (2007). Charter of ASEAN.
5. Babb, G. (1974). Training for the diplomatic service. Johannesburg: South African Institute of International Affairs.