Nur, Lutfi, Luthfi Ainun Nurani, Dodi Suryana, and Aslina Ahmad. “Rasch Model Application on Character Development Instrument for Elementary School Students”. International Journal of Learning, Teaching and Educational Research 19, no. 3 (March 31, 2020): 437–459. Accessed January 30, 2026. http://www.ijlter.net/index.php/ijlter/article/view/426.