Vo Van Thang 2021. THE ORIGINS OF CHAMPA: WAS THERE A KINGDOM OF XI-TU (西屠國) IN THE THU BỒN VALLEY ?. UED Journal of Social Sciences, Humanities and Education. 11, 2 (Dec. 2021), 27-34. DOI:https://doi.org/10.47393/jshe.v11i2.1006.