James Piscatori
UIII Press, 2022
Artikel Jurnal
Richardson, Bradley M.
Harper Collins, 1984
Buku Teks SO
Bourbeau, Philippe
Cambridge University Press, 2018
eBooks
edited by Claire Holt
Cornell University Press, 1972
Buku Teks SO
Equinox, 2007
Buku Teks SO