Cohen, Nathan (2015). "Distributing Knowledge: Warsaw as a Center of Jewish Publishing", in: Glenn Dynner and François Guesnet (Eds.), Warsaw. The Jewish Metropolis: Essays in Honor of the 75th Birthday of Professor Antony Polonsky. Leiden: Brill. p. 204-205. See also, in the same volume, Michael C. Steinlauf, "Hope and Fear: Y.L. Peretz and the Dialectics of Diaspora Nationalism, 1905-12," p. 227-251; on Hazomir, p. 242.
encyclopedia.com
Klausner, Yehuda Arye; Frieden, Ken (2007). "Peretz, Isaac Leib". Encyclopaedia Judaica. 2nd ed. Macmillan Reference USA. Vol. 15, pp. 765-768. Available online via Encyclopedia.com; retrieved 2019-10-12.
Prager, Leonard; Shmeruk, Chone; Mantovan, Daniela (2007). "Der Nister". Encyclopaedia Judaica. 2nd ed. Macmillan Reference USA. Vol. 5, pp. 596-598; here: p. 596. Available online via Encyclopedia.com; retrieved 2019-10-12.
Stevens, Payson R.; Levine, Charles M.; Steinmetz, Sol. "The contributions of I.L. Peretz to Yiddish literature." My Jewish Learning. myjewishlearning.com. Retrieved 2019-10-13. Excerpted from: Meshuggenary: Celebrating the World of Yiddish. New York: Simon & Schuster, 2002.
nycgovparks.org
"Peretz Square" (Lower Manhattan). New York City Department of Parks & Recreation. Retrieve 2019-10-13.
rosaluxemburgblog.wordpress.com
Caste, Rory (July 25, 2012). "Rosa Luxemburg and Jewish Zamość". Rosa Luxemburg Blog. rosaluxemburgblog.wordpress.com. Retrieved 2019-10-12.