Barnett, Vic, author
John Wiley & Sons, 1982
Buku Teks
Hoel, Paul Gerhard, 1905-, author
John Wiley & Sons, 1962
Buku Teks
Knottnerus, Paul
Springer-Verlag , 1991
Buku Teks
Aitken, A.C., author
Oliver and Boyd , 1974
Buku Teks
Mood, Alexander McFarlane, 1913-, author
McGraw-Hill , 1974
Buku Teks