Boyle, D.G.
Hutchinson University Library , 1971
Buku Teks
Austria : The Opec Fund For International Development, 2006,
Majalah, Jurnal, Buletin
Juynboll, Th. W. (Theodoor Willem), 1866-, author
E. J. Brill, 1925
Buku Klasik
Barreau, Jean-Claude
Le Pre aux Clercs, 1991
Buku Teks
Guiraud, Pierre
Utrecht Spectrum 1954
Buku Teks