General Asembly, 1980
Buku Teks
Association of Southeast Asian Nations, 1975
Buku Teks
Silvia Age Gideon, author
Fakultas Hukum Universitas Indonesia, 2011
UI - Skripsi Open
M. Sabir
Pustaka sinar Harapan, 1992
Buku Teks
Gill, Ranjit
Gramedia, 1988
Buku Teks