Fergusson, Rosalind, author
Routledge, 1994
Buku Referensi
edited on behalf of the Royal Netherlands Academy by H.A.R. Gibb, J.H. Kramers
E.J. Brill, 1953; 1995
Buku Referensi
Allan, J., author
Harvard, 1934
Buku Teks
Kooistra, J., author
Wolters, 1948
Buku Teks
Husserl, Edmund, author
Routledge, 2001
Buku Teks