Where can I find a COMPLETE list of foreign countries' province/state codes--incl. Saudi Arabia's? (I keep getting the RHS-032 error code with my Indiana return.)

I'm trying to file my Indiana state return, which requires you to add a specific 1 or 2 digit/letter code in the "state" box if you have a foreign address. There's a PDF with a handful of countries' province/state codes on IN.gov, but most countries--including Saudi Arabia--are not on that list. Help?

(I e-mailed the IN DOR a few days ago, but haven't heard back yet...)