Campbell, John C.
Harper & Row, 1967
Buku Teks SO
Broz-Tito, Josip
Pusaka, 1959
Buku Teks
Nikolic, Pavlo
Secretariat of Information of the S.F.R. of Yugoslavia Assembly, 1974
Buku Teks SO
Dopisma delavska Univerza, 1976
Buku Teks SO
edited by Dragoljub Durovic; translated by Marko Pavicic
Dopisna Delavska Univerza, 1977
Buku Teks SO