A Re-assessment of the Organisation and Benefits of the Slave and Palm Produce Trade Amongst the Ngwa-IgboORIJI, J. N.Canadian Journal of African Studies. Revue Canadienne des Etudes Africaines Québec. 1982, Vol 16, Num 3, pp 523-548Article

A Study of the Structure of the Ngwa-Igbo-Society of Southeastern NigeriaORIJI, J. N.Bulletin de l'Institut Fondamental d'Afrique Noire. Série B : Sciences Humaines. 1982, Vol 44, Num 1-2, pp 138-162Article

Sacred Authority in Igbo Society in L'Islam en France et en EuropeORIJI, J. N.Archives de sciences sociales des religions. 1989, Vol 68, Num 1, pp 113-123, issn 0335-5985Article

A Study of the Slave and Palm Produce Trade amongst the Ngwa-Igbo of Southeastern NigeriaORIJI, J. N.Cahiers d'Etudes Africaines Paris. 1983, Vol 23, Num 91, pp 311-328Article

A study of the structure of the Ngwa-Igbo society of Southeastern NigeriaORIJI, J. N.Bulletin de l'Institut Fondamental d'Afrique Noire. Série B. Sciences Humaines. 1982, Vol 44, Num 1-2, pp 138-162Article