Locke, John, author
Routledge, 2000
Buku Teks
Locke, John, author
Routledge, 2000
Buku Referensi
Locke, John, author
Hackett Publishing Company, Inc., 1996
Buku Teks
Banerjee, Nikunja Vihari, author
George Allen and Unwin, 1958
Buku Teks
Locke, John, author
J.M. Dent & Sons, 1947
Buku Teks