Giller, Robert M., author
Pavilion, 1995
Buku Referensi
Seller, Roberth H, author
Saunders, 2007
Buku Teks
Latter, Oswarld H. (Hawkins), 1864-, author
At The University Press, 2014
Buku Teks
Sambidge, Gordon, author
Piccadilly Press Ltd., 1992
Buku Referensi
Lofrano, Giusy, editor
Springer, 2012
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