Rietbergen, P.J.A.N., author
Bekking, 1992
Buku Teks
Maesarovic, Mihailo
Agon Elsevier, 1974
Buku Teks
Andreae, S.J. Fockema, author
Kluwer, 1952
Buku Teks
Kloek, Els
Vantilt , 2013
Buku Teks
Berg, C. C. (Cornelis Christiaan), 1900-1990, author
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Buku Klasik