Artikel Jurnal
Whittaker, Joss R.
University of Indonesia, Faculty of Humanities, 2019
Artikel Jurnal
Edited by Don Brothwell, Eric Higgs
Thames and Hudson, 1971
Buku Referensi
Sutton, Mark Q.
Routledge, 2016
Buku Teks
Feder, Kenneth L.
McGraw-Hill, 2011
Buku Teks