John Oo

Evaluation of the Impact of Security Threats on Operational Efficiency of the Nigerian Port Authority (NPA)

Olusegun Abayomi Olalere, Temitope Ak, John Oo, 2015 .

The absence of adult mortality data for sub-Saharan Africa: a practical solution.

J. Kaufman, R. Cooper, J. Kaufman, 1997, Bulletin of the World Health Organization.