Vries, Theun de, 1907-, author
Cadans, 1992
Buku Teks
Reisel, Wanda, author
IT&FB, 2002
Buku Teks
Terborgh, F.C., author
L.J.C. Boucher, 1964
Buku Teks
Daum, P.A., author
Thomas and Eras, 1977
Buku Teks
Boomsma, Graa, author
In de Knipscheer, 1986
Buku Teks