Gaya APA

Toland, M, D. (2013). Practical Guide to Conducting an Item Response Theory Analysis (Vol 34(1) 120– 151). U.S.A: SAGE.

Gaya MLA

Toland, Michael, D.. "Practical Guide to Conducting an Item Response Theory Analysis". Vol 34(1) 120– 151 U.S.A: SAGE, 2013. e-journal.