International regional organizations: constitutional foundations
edited with introductory by Ruth C. Lawson
Frederick A. Praeger, 1962
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Kirgis, Frederic L.
International organizations in their legal setting
West Publishing, 1993
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The evolution of international organizations
edited by Evan Luard
Praeger, 1966
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Hay, Peter
Federalism and supranational organizations: patterns for new legal structures / Peter Hay
University of Illinois Press, 1966
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International organisation: a conceptual approach
edited by Paul Taylor and A.J.R. Groom
Frances Pinter, 1978
 Buku Teks