Gills, Barry K., Saskia Sassen, and Immanuel Wallerstein. “Janet Abu-Lughod and the World System: The History of World System Development and the Development of World System History”. Journal of World-Systems Research 20, no. 2 (September 1, 2014): 174–184. Accessed April 23, 2024. http://jwsr.pitt.edu/ojs/jwsr/article/view/547.