Yamtinah, Sri, Ashadi Ashadi, Bakti Mulyani, Budi Utami, and Marantika Lia Kristyasari. “Characteristics Analysis of Integrated Science Question Items With the Rasch Model”. Journal of Environment and Sustainability Education 1, no. 1 (February 15, 2023): 7–19. Accessed March 17, 2025. https://joease.id/index.php/joease/article/view/1.