Benny Tm Togatorop, author
Fakultas Kedokteran Universitas Indonesia, 2014
UI - Tesis (Membership)
Stephenson, J. L.
Bard Books, 1948
Buku Teks
Mitchell, Richard, author
Browen, 1979
Buku Teks
Fedoseyev, G.
Pragress Publishers , 1962
Buku Teks
Borner, Katy, author
London : MIT press, 2015
Buku Referensi