The catechist in Faith education and pastoral care among the Ibibio people / Emmanuel Okon Umoetok. - Okon Umoetok, Emmanuel. (OLS)http://pul/name/52207 (Pontificia Università Lateranense, 1986)
Diss. (doct.)-- Pontificia Universitas Lateranensis.
Bibliografia in nota ed in appendice.