Smith, Charles D. (2004). Palestine and the Arab-Israeli Conflict (2nd edición). Boston, MA: Bedford/St. Martin's. p. 138. ISBN0-312-40408-5. «Begin... adhered to his Revisionist ideology throughout his life... He idolized Jabotinsky and served as an officer in the Betar militia in Poland during the 1930s.»
Smith, Charles D. (2004). Palestine and the Arab-Israeli Conflict (2nd edición). Boston, MA: Bedford/St. Martin's. p. 115. ISBN0-312-40408-5. «[Jabotinsky] formed youth groups (Betar) whose practices, patterned after the tactics and symbols of fascism, included wearing brown shirts and using special salutes.»
