Bunyavejchewin, Poowin. 2012. “Theories of International Politics after the Incident of 9/11: The Richness and Weakness of Realist Tradition in the Twentieth-First Century”. Kasetsart Journal of Social Sciences 33 (1):161-69. https://so04.tci-thaijo.org/index.php/kjss/article/view/246806.