Dr. Morton Smith's "Westminster Confession of Faith" has internal links to his "The Shorter Catechism of the Westminster Confession Standards," "The Larger Catechism of the Westminster Standards," and A.A. Hodges' "Commentary on the Westminster Confession." The links to Hodges' commentary work, but the links to the Shorter and Larger Catechism both produce a dialog that says those works are not in my library. I even downloaded them to my tablet, but that didn't help. These links are very helpful for teaching and study.