Linus, Ekka Pingal. Apostolate of Oraon Christian Tribals in the Church of Chotanagpur : Juridico-Pastoral Study of Can.225 1 / Ekka Pingal Linus. - Roma : Pontificia Universitas Urbaniana ; 1998. - 158 p. ; includes index and biblioraphy ISBN: Dewey Class. No.: G05.6 / L658