Ashley, D. and Samuel Segun, S. (2023) “Technical efficiency of catfish production in Oyo State, Nigeria. A case of freshwater culture systems using Data Envelopment Analysis (DEA) approach”, Nigerian Journal of Animal Science, 24(1), pp. 108–116. Available at: https://www.njas.org.ng/index.php/php/article/view/577 (Accessed: 30 May 2026).