Lijphart, Arend (1971). "Comparative politics and the comparative method". American Political Science Review. 65 (3): 682–693. doi:10.2307/1955513. JSTOR1955513.
Mair, Peter (1996). "Comparative politics: An introduction to comparative.overview". Dalam Goodin, Robert E.; Klingemann, Hans-Dieter. A New Handbook of Political Science. Oxford: Oxford University Press. hlm. 309–335. ISBN0-19-829471-9.
jstor.org
Lijphart, Arend (1971). "Comparative politics and the comparative method". American Political Science Review. 65 (3): 682–693. doi:10.2307/1955513. JSTOR1955513.