A revised and updated version of
Abraham Kuyper: An Annotated Bibliography 1857-2010 by Tjitze Kuipers (2011)

You can buy a printed edition of this book on the site of the publisher.

1908

[Two letters.]
In: Staatkundige gedachten. Twee brieven van Dr. A. Kuyper besproken, door Mr. D.P.D. Fabius.
Kampen, J.H. Bos 1908, pp. [131]–139.
Published: June 1908.
See also: 1908.01 and 1908.05.
(RKB 180.)

Two letters to the editor reprinted as a supplement to a brochure in which Fabius discussed those letters at length (130 pp.).