This list contains both print and online sources. Some online sources are subscription while others are freely accessible to the public.
Hint: You might also search for a research guide on your subject. The Drake Law Library has one for our Refugee Clinic and International Human Rights. A good way to find others is to do an Internet search for "research guide" and the subject you want.
Westlaw offers access to a number of international model codes in a collection called "International Code Council Model Construction Codes." Codes included: