Hempel, George H.
John Wiley & Sons, 1983
Buku Teks
Reed, Edward Wilson, 1913-, author
Appleton-Century-Croffs , 1970
Buku Teks
Suharyanto, author
Universitas Indonesia, 2005
UI - Tesis (Membership)
Rini Septiastri Wulandari, Author
2005
UI - Tesis (Membership)
Reed, Edward Wilson, 1913-, author
Prentice-Hall, 1977
Buku Teks