Aar, Hetty van, author
Standaard, 2012
Buku Teks
Berge, H.C. ten, author
Gelderse Culturele Raad, 1992
Buku Teks
Boudier-Bakker, Ina, author
Elseviers Weekblad, 1957
Buku Teks
Costers, S.
Zutphen: Thieme t.th, [date of publication not identified]
Buku Teks
Smedts, W.
Universitaire Pers Leuven, 1986
Buku Teks