Barnett, Jonathan
McGraw-Hill, 1974
Buku Teks SO
edited by Julian Custer
Clanrye International, 2018
Buku Teks SO
edited by Andrew Karvonen, Federico Cugurullo and Federico Caprotti
Routledge, Taylor & Francis Group, 2019
Buku Teks SO
edited by Ellen van Bueren, Hein van Bohemen, Laure Itard, Henk Visscher,
Springer, 2012
Buku Teks SO
Adam Ritcjie, Randall Thomas, editor
Taylor & Francis Group, 2009
Buku Teks SO