Okpaku, J. O., & Figueres, J. M. (2003). Information and communications technologies for African development: An assessment of progress and the challenges ahead / ed. with introduction by Joseph O. Okpaku. Preface by José María Figueres. United Nations ICT Tas Force.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOkpaku, Joseph O., और Jose Maria Figueres. Information and Communications Technologies for African Development: An Assessment of Progress and the Challenges Ahead / Ed. with Introduction by Joseph O. Okpaku. Preface by José María Figueres. New York: United Nations ICT Tas Force, 2003.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOkpaku, Joseph O., और Jose Maria Figueres. Information and Communications Technologies for African Development: An Assessment of Progress and the Challenges Ahead / Ed. with Introduction by Joseph O. Okpaku. Preface by José María Figueres. United Nations ICT Tas Force, 2003.