Jelaskan Negara-negara anggota dari Kumpulan 15 dalam bahasa melayu

Haas, P.M. (1992). "Introduction. Epistemic communities and international policy coordination," ''International Organization 46,1:1-35.

Reinalda, Bob and Bertjan Verbeek. (1998).  Autonomous Policy Making by International Organizations. London: Routledge. 	10-ISBN 0-415-16486-9/13-ISBN 978-0-415-16486-3; 13-ISBN 978-0-203-45085-7;10-ISBN 0-203-45085-X;   OCLC 39013643