IYAMAH, Timothy; IYAMAH, Aje; OTU, Bernard. Selected Criteria for Effectiveness Unical Sandwich Programme in the University of Calabar, Cross River State-Nigeria. Transdisciplinary Journal of Education & Sustainable Development Studies, [S. l.], v. 2, n. 1, p. 570–574, 2026. DOI: 10.60787/tjesds.vol2no1.120. Disponível em: https://tjesds.org.ng/index.php/home/article/view/120. Acesso em: 14 sep. 2026.