Cita APA (7a ed.)

Okonkwo, C. A. (2012). Assessment of challenges in developing self-instructional course materials at the National Open University of Nigeria. Athabasca University Press.

Cita Chicago Style (17a ed.)

Okonkwo, Charity Akuadi. Assessment of Challenges in Developing Self-instructional Course Materials at the National Open University of Nigeria. Athabasca University Press, 2012.

Cita MLA (8a ed.)

Okonkwo, Charity Akuadi. Assessment of Challenges in Developing Self-instructional Course Materials at the National Open University of Nigeria. Athabasca University Press, 2012.