Clayton R Koppes (June 1982). "The Good Neighbor Policy and the Nationalization of Mexican Oil: A Reinterpretation". The Journal of American History. 69 (1): 62–81. doi:10.2307/1887752. JSTOR1887752.
International Monetary Fund (2022). "General government gross debt". IMF Data Mapper. International Monetary Fund. Retrieved 5 November 2022.
jstor.org
Clayton R Koppes (June 1982). "The Good Neighbor Policy and the Nationalization of Mexican Oil: A Reinterpretation". The Journal of American History. 69 (1): 62–81. doi:10.2307/1887752. JSTOR1887752.