Aya, R. R. (2006). Book review D. Graeber [Review of: Fragments of an anarchist anthropology]. American Anthropologist, 108, 590-591.
Aya, R. R. (2006). Book review M. Sahlins [Review of: Apologies to Thucydides: Understanding history as culture and vice versa]. American Anthropologist, 108, 433-434.
Aya, R. R. (2006). Theory, fact, and logic. In R. E. Goodin, & C. Tilly (Eds.), The Oxford Handbook of contextual political analysis (pp. 114-128). Oxford University Press.
Aya, R. R. (2005). Theory of revolution from Thucydides to Tilly. In M. Kousis, & C. Tilly (Eds.), Economic and political contention in comparative perspective (pp. 88-98). Paradigm Publishers.
Aya, R. R. (2004). Pomo blues: A rejoinder to Saris. Irish Journal of Sociology, 13, 48-50.
Aya, R. R. (2004). Reign of error; or, The case against cognitive cultural relativism. Irish Journal of Sociology, 13, 29-43.
Aya, R. R. (2003). Tylor's list. Journal of Mediterranean Studies, 13, 119-124.
Aya, R. R. (2001). The Curse of Cognitive Cultural Relativism. In F. Lindo, & M. van Niekerk (Eds.), Dedication and Detachment: Essays in honour of Hans Vermeulen (pp. 33-41). Het Spinhuis.
Aya, R. R. (2001). Der Dritte Mann, oder Agency in der Geschichte, oder Rationalität in der Revolution. Geschichte und Gesellschaft. Sonderheft, (19), 33-45.
Aya, R. R. (2001). The Third Man; or, Agency in History; or, Rationality in Revolution. History and Theory, (40), 143-152.