Wallace, R. M. M., and F. A. W. Janeczko. “The 2011 EU Directive on Combating Human Trafficking: Does the United Kingdom Comply?”. South African Yearbook of International Law, vol. 36, 2011, pp. 120-45, https://unisapressjournals.co.za/index.php/SAYIL/article/view/12987.