Jaeger, Werner, 1888-1961
The Theology of the early greek philosophers : the gifford lectures 1936
Clarendon Press, 1947
 Buku Teks
Blackson, Thomas A.
Ancient Greek philosophy : from the presocratics to the hellenistic philosophers
Wiley-Blackwell, 2011
 Buku Teks
Tsanoff, Radoslav A.
The great philosophers
Harper & Brothers, 1953
 Buku Teks
Rorty, Richard
On philosophy and philosophers
Cambridge University Press, 2020
 eBooks
Berry, George Ricker
The classic Greek dictionary; Greek-English and English-Greek
Chicago, Fallet Publishing, 1962
 Buku Referensi