Houwing, PH. A.N.
W.E.J. Tjeenk Willink, 1939
Buku Teks
Emge, Carl August
Frankfurt, 1955
Buku Teks
Sinzheimer, Hugo
H.D. Tjeenk Willink, 1948
Buku Teks
Algra, N.E., author
H. D. Tjeenk Willink, 1977
Buku Teks
Langemeijer, G.E. (Gerard Eduard), 1903-1990, author
Tjeenk Willink, 1970
Buku Teks