Barry, Sebastian
Querido, 2006
Buku Teks
Cuyas, Arturo, author
Appleton-Century-Crofts, 1962
Buku Referensi
Bloem, Marion, author
De Arbeiderspers, 1987
Buku Teks
edited by John A. Dean, Norbert Adolph Lange
McGraw-Hill, 1985
Buku Referensi
Gijsen, Marnix, author
Meulenhoff, 1966
Buku Teks