Roeder, O. G.
Who's who in Indonesian
Gunung Agung, 1971
Buku Referensi
The international who's who 2008
Routledge, Taylor & Francis Group, 2007
Buku Referensi
Hazel, John
Who's Who in the Greek World
Routledge, 2000
Buku Teks
Hazel, John
Who's who in the Greek world
Routledge, 2000
Buku Referensi
The international who's who 1984-85
Europe Publications Limited, 1984
Buku Referensi