D. Echude, M. I. Amobi, S. U. Umar, I. M. Ezenwa, and C. N. Okechukwu, “Checklist and Comparison of Butterfly Species found in Zoological and Botanical Gardens, University of Nigeria, Nsukka, Enugu State, Nigeria”., JBRB, vol. 18, no. 1, pp. 1071–1077, Apr. 2020, doi: 10.4314/br.v18i1.1.