Hambleton, R.; Swaminathan, H.; Rogers, H. (1991). Fundamentals of Item Response Theory. Newbury Park, California: Sage Publications, Inc. Archived from the original on 2 August 2022.
Hambleton, R.; Swaminathan, H.; Rogers, H. (1991). Fundamentals of Item Response Theory. Newbury Park, California: Sage Publications, Inc. Archived from the original on 2 August 2022.