The IOG chronicle
Prosinergi Multitama, 2002
Buku Referensi
Organisation for Economic Cooperation and Development, 1982
Buku Teks
Gramedia Pustaka Utama, 1992
Buku Teks
International Biographical centre, 1986
Buku Referensi
Sir Elihu Lauterpacht, Sir Christopher Greenwood and Karen Lee, editors
Cambridge University Press, 2012
Buku Teks