Sihombing, Rosita Uli, Dali S. Naga, and Wardani Rahayu. 2019. “A RASCH MODEL MEASUREMENT ANALYSIS ON SCIENCE LITERACY TEST OF INDONESIAN STUDENTS: SMART WAY TO IMPROVE THE LEARNING ASSESSMENT”. IJER - INDONESIAN JOURNAL OF EDUCATIONAL REVIEW 6 (1). https://journal.unj.ac.id/unj/index.php/ijer/article/view/12588.