Capelle, M. A. A. van, author
Velder Business Publications, 1991
Buku Referensi
Komite Nasional Indonesia, 1980
Buku Teks
compiled and arranged on an English alphabetical basis by W. E. Clason
Elsevier, 1978
Buku Referensi
Venturi, Marco
Arsenale editrice, 1990
Buku Teks
Steltenpool, J., author
Martinus Nijhoff, 1969
Buku Referensi