Bello Kaseem, S. . (2025). DIFFERENTIAL ITEM FUNCTIONING ANALYSIS OF 2022 AND 2023 ALGEBRA AND ELEMENTARY TRIGONOMETRY EXAMINATIONS AT FEDERAL POLYTECHNIC DAURA, KATSINA STATE, NIGERIA. Gusau Journal of Entrepreneurship Development, 3(2), 36–42. https://doi.org/10.57233/gujed.v3i2.03