Siangyen, Chamaiporn. “U.S. Smart Power in Southeast Asia During the Obama Administration: More Hard or Soft Power?”. Thai Journal of East Asian Studies 22, no. 1 (August 21, 2018): 72–93. Accessed March 29, 2024. https://so02.tci-thaijo.org/index.php/easttu/article/view/93845.