Oluwole, Ajayi, et al. “Prevailing Issues And Rate Of Tourists Patronage Of Historical Monument: A Study Of Badagry Slave Route And Relics In Nigeria”. International Journal of Creativity and Technical Development (IJCTD), vol. 2, no. 1-3, Dec. 2010, pp. 67-75, http://icidr.org.ng/index.php/Ijctd/article/view/704.