Qadir, Muhammad Javid, and Abdul Hameed . “Rasch Calibration of General Science Test at Grade-VIII in Pakistan”. Journal of Education and Vocational Research 3, no. 3 (March 15, 2012): pp. 98-106. Accessed November 21, 2024. https://ojs.amhinternational.com/index.php/jevr/article/view/55.