J.P. Mayberry
John Penn Mayberry (Wikipedia)
Natural Number Arithmetic in the Theory of Finite Sets by J. P. Mayberry and Richard Pettigrew
The Foundation of Mathematics in the Theory of Sets (Internet Archive)
Foundations of Mathematics (The n-Category Cafe)
Set Theory
Set Theory (Stanford Encyclopedia of Philosophy)
An Introduction to Set Theory by William A. R. Weiss
Sets, Relations, Functions by Ivo Düntsch and Günther Gedigas
A Book of Set Theory by Charles C. Pinter
Notes on Set Theory ... by Andrew Marks
Mathematical Foundations a la Set Theory
Set Theory and Foundations of Mathematics by Sylvain Poirier
Anti-Cantor Theory (Wikipedia)
The Uses and Abuses of the History of Topos Theory by Colin McLarty
Set Theory and its Place in the Foundations of Mathematics by Mirna Dzamonja