The UII Central Library has a collection of over 500,000 titles of books and continuously expanding online reference sources. The Central Library is in the Mohammad Hatta Building on the UII Integrated Campus, Kaliurang Street, Yogyakarta. The Online Public Access Catalog (OPAC) can be accessed online on the UII Library Directorate's webpage. Location: Mohammad Hatta Building, UII Integrated Campus. Operating days and hours: Monday - Saturday, 8 am - 10 pm WIB.

Website: https://library.uii.ac.id