Dialecten (Geheel) II
[Publisher not identified], [Date of publication not identified]
 Naskah
Dialecten (Geheel) III
[Publisher not identified], [Date of publication not identified]
 Naskah
Dialecten (Voorwerk) jilid I
[Publisher not identified], [Date of publication not identified]
 Naskah
Dialecten (Voorwerk) jilid II
[Publisher not identified], [Date of publication not identified]
 Naskah
Dialecten (Geheel) I
[Publisher not identified], [Date of publication not identified]
 Naskah