Manajemen Usahawan Indonesia, XXXII (01) Januari 2003: 47-49, 2003
Artikel Jurnal
Shen, Fu, author
Yilin Press, 2006
Buku Teks
George Wald ... [et al.]
Addison-Wesley, 1966
Buku Teks
Birkett, Lord, author
Penguin Books, 1961
Buku Teks
Gygi, Craig, author
Wiley, 2006
Buku Teks