Woolley, Leonard
A Forgotten kingdom / Leonard Woolley
Penguin Books , 1953
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Mohammad Hatta, 1902-1980
Alam pikiran yunani : terbitan khusus satu abad Bung Hatta
UI-Press, 2002
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A companion to early modern philosophy : balckwell companions to philosophy
Mary Louise Gill; Pierre Pellegrin
BlackWell Publishing, 2005
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Oxford studies in ancient philosophy; Vol. II
edited by Julia Annas
Clarendon Press, 1984
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Oxford studies in ancient philosophy; Vol.III
edited by Julia Annas
Clarendon Press , 1985
 Buku Teks SO