Bartstra, J. S., author
De Erven F. Bohn, 1949
Buku Teks
SDU, 1991
Buku Teks
Breman, Jan, author
Dordrecht-Holland Foris 1987
Buku Teks
Wachters, H.J.J.
AD.M.C. Stok, [date of publication not identified]
Buku Teks
Noordam, F.M.
Samsom H.D.Tjeenk Willink, 1984
Buku Teks