Hayati, Nisma, et al. “Item Analysis of Mathematics Questions on the Topic of Units of Time at 116 Percontohan State Elementary School”. Journal of Matematics In Teaching and Learning, vol. 3, no. 2, Dec. 2024, pp. 233-42, https://jurnal.stain-madina.ac.id/index.php/matematika/article/view/2296.