Lupis, Ingrid Detter de, author
Norsteds Forlag, 1987
Buku Teks
Helminen, Marjaana, author
Wolters Kluwer, 2010
Buku Teks
Paddeu, Federica, 1982-, author
Cambridge University Press, 2018
Buku Teks
Fenwick, Charles G., author
Appleton-Century-Crofts, 1948
Buku Teks
Shaw, Malcolm N. (Malcolm Nathan), 1947-, author
Cambridge, 2003
Buku Teks