Leeden, Frits van der, author
Lewis Publishers, 1990
Buku Referensi
Hawkins, Paula, author
Doubleday, 2017
Buku Teks
Hawkins, Paula, author
Noura Books, 2017
Buku Teks
Dabai Kequanshu Chubanshe, 1998
Buku Referensi
Brakman, Willem
EM. Querido's Uitgeverij N.V, 1965
Buku Teks