Gallas, K. R.
J. B. Wolters, [date of publication not identified]
Buku Referensi
Herckenrath, C. R. C.
J. B. Wolters U. M., [date of publication not identified]
Buku Referensi
by P. J. Meertens, Mies Campfens, Ger Harmsen, Albert F. Mellink, Bob Reinalda
IISG, 1987
Buku Referensi
Klinkert, H.C.
E.J. Brill, 1901
Buku Teks
Wall, H. von de
[publisher not identified], [date of publication not identified]
Buku Referensi