Progressive People's Party (Germany)

基督教社會人民服務黨（英语：Christian Social People's Service） 德國共產黨 德國共產黨（反對派）（英语：Communist Party of Germany (Opposition)） 保守人民黨（英语：Conservative People's Party (Germany)） 德國民主黨 德國國家人民黨

Sarah Elise Wiliarty. The CDU and the Politics of Gender in Germany: Bringing Women to the Party. Cambridge University Press. 2010-08-16: 218–221 [2017-09-05]

ISBN 978-0-521-39121-4.  Blaazer, David. The Popular Front and the Progressive Tradition: Socialists, Liberals, and the Quest for Unity, 1884–1939.

meeting, 1993[永久失效連結] Diplomat, Akhilesh Pillalamarri, The. India's Bharatiya Janata Party Joins Union of International Conservative Parties. The Diplomat

Steven J. Legalizing Cannabis Violates the UN Drug Control Treaties, But Progressive Countries Like Canada Have Options. Ottawa Law Review. March 2018, 49