Nwangwu, C. and Ononogbu, A.O. (2014) “National Security and Sustainable Economic Development in Nigeria since 1999: Implication for the Vision 20:2020”, Journal of Educational and Social Research, 4(5), p. 129. Available at: https://www.richtmann.org/journal/index.php/jesr/article/view/4401 (Accessed: 16 February 2026).