Okoye, B.C; Asumugha, G.N and Mbanaso, E.N.A (2006): Cost Return Analysis of Cocoyam Production at NRCRI, Umudike. Published in: Agricultural Society of Nigeria No. 41 (2007): pp. 511-513.
Chukwu, G.O; Nwosu, K.I; Mbanaso, E.N.A; Onwubiko, O; Okoye, B.C; Madu, T.U; Ogbonye, H and Nwoko, S.U (2009): Development of Gocken Multiplication Technology for Cocoyam. Forthcoming in: Proceedings of the Agricultural Society of Nigeria No. 43 (20. October 2009)
Okoye, B.C; Agbaeze, C.C; Asumugha, G.N; Aniedu, O.C and Mbanaso, E.N.A (2009): Small is Beautiful: Empirical Evidence of an Inverse Relationship between Farm Size and Productive Efficiency in Small-Holder Cassava Production in Ideato North LGA of Imo State. Unpublished.