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.

1941

Het sociale vraagstuk en de christelijke religie. Rede bij de opening van het Sociaal Congres op 9 november 1891 gehouden door Dr. A. Kuyper.
In: Het eerste Christelijk-Sociaal Congres (1891). Vernieuwde uitgaaf van het Proces-verbaal bewerkt en van aanteekeningen voorzien door R. Hagoort.
Aalten, “De Graafschap” 1941, pp. 9–47.
New edition of: 1891.15.
ET, see: 1891.14.
UBVU.

A new edition of the opening address delivered to the Social Congress on November 9, 1891. The editor has supplied notes here and there, which he sometimes adapted from the notes in 1891.14. The address was included in a prospective commemorative jubilee edition of 1892.10. The original volume with the proceedings of the Social Congress of 1891 was to have been completely re-edited and thus made much easier to consult. This project, however, was suspended after two installments.