by Christoph Stocker, Ingrid Davids; Karl Heinz Bonath, Wolfgang Hieber
Wiley Eastern, 1979
Buku Teks
Fitzgerald, Angela
Sense, 2012
eBooks
Loughran, John
Sense, 2012
eBooks
edited by Richard J. Davidson, Klaus R. Scherer, H. Hill Goldsmith
Oxford University Press, 2003
Buku Teks
ed. by Michael J. Kennish
CRC Press, 1994
Buku Referensi