Stein, P.A., author
Kluwer, 1985
Buku Teks
Jonkers, J.E., author
E.J. Brill, 1946
Buku Klasik
Jonkers, J.E., author
E.J. Brill, 1946
Buku Klasik
Muller, F. J., author
Albrecht, 1931
Buku Teks
Pijper, Gullaume Frederic, author
E.J. Brill, 1934
Buku Klasik