Cross-references are one of my favorite features in a study Bible. Not all Bibles have them (Note-taker’s from LCBP), and not all Bibles have enough if they do have them (wide-margin from Hendrickson). Even if your Bible has plenty of cross-references, there’s always going to be a need for a reference that’s not included. For all of these situations it is best to make your own. The art of creating your own cross-references is a great Bible study method. Jonathan Ammon, of Bible Reading Project, has written an outstanding article on creating cross-references. You can read his article here:

Creating Cross-References