OLUTOLA , Thomas, et al. “ANALYSIS OF GENDER-RELATED DIFFERENTIAL ITEM FUNCTIONING OF 2021 NECO BECE MATHEMATICS MULTIPLE-CHOICE ITEMS IN NIGERIA”. CONFLUENCE JOURNAL OF EDUCATION AND KNOWLEDGE MANAGEMENT, vol. 2, no. 2, Dec. 2025, pp. 104-9, https://cjekm.ng/index.php/cjekm/article/view/70.