Konig, Hartmut
Springer-Verlag, 2012
eBooks
Meehan, Diane
Stanley Thornes , 1990
Buku Teks
Irving, John
Gramedia Pustaka Utama, 2006
Buku Teks
Schwab, Klaus, 1938-
Currency, 2017
Buku Teks
edited by Frederick W. Moorman, revised by morris Palmer Tilley
DC Health, 1917
Buku Teks