The Universality of Foreign Direct Investment, Foreign Aid, and Domestic Investment on Economic Growth: A Multi-Panel Analysis of Developing Countries, 1993-2022. JPMIR [Internet]. 2026 Nov. 3 [cited 2026 Nov. 6];1(4):410-22. Available from: https://journals.dut.ac.za/index.php/JPMIR/article/view/1772