Cornelius Lutz, editor
[, Springer], 2012
eBooks
Siagian, Reinhard, author
2000
UI - Tesis (Membership)
Bell, Peter Robert, author
Dioscorides Press , 1992
Buku Teks
Beevers, Harry Professor.
Harper & Row,, 1961
Buku Teks
Babington, Charles Cardale, author
Cambridge University Press, 2013
Buku Teks