Lademacher, Horst
AULA, 1993
Buku Teks
Brugmans, H., author
Joost Van Den Vondel, 1935
Buku Referensi
Zadel, P. Sikkes en A.
N. Samsom N.V., 1965
Buku Teks
Cheraskowa, J.P., author
Pegasus, [date of publication not identified]
Buku Referensi
Sikkes, Pieter, author
N. Samsom, 1848
Buku Teks