Kanu, M. et al. 2026. Instructional Quality Assurance Practices and Students’ Academic Performance in Economics in Calabar Education Zone of Cross River State, Nigeria. Transdisciplinary Journal of Education & Sustainable Development Studies. 1, 3 (Jan. 2026), 135–152. DOI:https://doi.org/10.60787/tjesds.vol1no3.44.