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* Andriy Klymchuk, "Lesia Ukrainka: Pro Scho Ne Pyshut u Pidruchnykakh" in Istorychna Pravda (2021)
* Various Authors, Mykhaylo Drahomanov: A Symposium and Selected Writings (1952)
* Andrzej Pankowicz & Arkadiusz Gornisiewicz, "The Dilemmas of Identity in East-Central Europe" in Politeja (2008)
* Roman Solchanyk, "Mykhailo Drahomanov and the Ems Ukase: A Note on the Ukrainian Question at the 1878 International Literary Congress in Paris" in Harvard Ukrainian Studies (1977)
* "10 Faktiv pro Batka Lesi Ukrainky: do 180-richchia Vydatnoho Hromadskoho i Kulturnoho Diacha Petra Kosacha" in Novyny Poltavschyny (2022)
* Ivan Denysiuk, Tamara Skrypka, "Petro Antonovych Kosach" in Tarama Skrypka
* Lilia Solodka, "Kontsept: Rodynnykh Stosunkiv Oleny Pchilky ta Lesi Ukrainky" in Ya Poltavchyn (2021)