Norton, Henry K.
Allen & Unwin , [date of publication not identified]
Buku Teks
Pantucci, Raffaell, author
Routledge, Taylor & Francis Group, 2017
Buku Teks
Mindo Stevi Ardi, author
2012
UI - Skripsi (Open)
Chakravarti, P.C.
Indiana University Press, 1962
Buku Teks
Joseph, Phillip, author
George Allen and Unwin, 1928
Buku Teks