Ji, Yingxi. “Quantifying the Trajectory of Social Complexity at the Xia–Shang Transition: A Quantitative Archaeological Study of the Erlitou and Yinxu Sites”. Academic Journal of History and Culture 1, no. 3 (August 18, 2026): 29–33. Accessed September 12, 2026. https://ajohc.org/index.php/ojs/article/view/20.