Etebu, Charity E., et al. “Hostage Taking In The Niger Delta: Implications On Educational Development In Bayelsa State Of Nigeria”. Journal of Sociology, Psychology and Anthropology in Practice (JSPAP), vol. 3, no. 1, Apr. 2011, pp. 99-109, http://icidr.org.ng/index.php/Jspap/article/view/1580.