Kuhn, Thomas S., author
Remaja Rosdakarya, 2012
Buku Teks
Lastrucci, Carlo L.
Schenkman, 1964
Buku Teks
Gauch, Hugh G., 1942-, author
Cambridge University Press, 2012
Buku Teks
Popper, Karl R., author
Basic Books, 1959
Buku Teks
Snow, C.P.
The New America Library, 1964
Buku Teks