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), vol. 60, no. 1, Aug. 2021, pp. 200-12, https://doi.org/10.53896/ijsbar.v60i1.13004.