B. SIPHANTHONG, S. SIOUDOMPHAN, K. SONESAI, S. LAYASENG, and S. SOULISACK, “Analyze the trend of investment and trade between Lao PDR and China under the project ‘The Belt and Road’ from 2021-2025”, sujournal, vol. 7, no. 2, pp. 418–429, Dec. 2021.