Sipka, P. “Book Review: The Power of the Collective: A Remarkable Book on European Collective Labour Law, Edited by Beryl Ter Haar and Kun Attila (Edward Elgar Publishing, 2021)”. Italian Labour Law E-Journal, vol. 15, no. 2, Jan. 2022, pp. 195-03, doi:10.6092/issn.1561-8048/16075.