Mirela Bogdani, John Loughlin: Albania and the European Union: The Tumultuous Journey Towards Integration and Accession (= Library of European Studies). I. B. Tauris, 2007, ISBN 978-1-84511-308-7, S.122 (eingeschränkte Vorschau in der Google-Buchsuche): „The first Albanian political parties, in the western meaning of the word, appeared in the early 1920s, the most prominent being: the Progressive Party led by Ahmet Zogu, the People's Party led by Fan Noli, and the Popular Party led by Xhafer Ypi...“
