Do Thi Thuy, Linh, and Huy Nguyen Quang. “Relationship Between Foreign Direct Investment and Economic Growth: An Applied Research in Low Income, Lower Middle Income, Upper Middle Income, and High-Income Countries”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 60, no. 1 (August 31, 2021): 200–212. Accessed May 19, 2024. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/13004.