Sartre, Jean-Paul
What is literature?
Routledge classics, 2001
 Buku Teks
What is criminology?
edited by Mary Bosworth and Carolyn Hoyle
Oxford University Press, 2013
 Buku Teks
Benjamin, Andrew
What is abstraction?
Academy Editions, 1996
 Buku Teks
Pastorino, Ellen
What is psychology?
Wadsworth, 2006
 Buku Teks
Harcnack, Adolf
What is Christianity?
Harper & Brathers, 1957
 Buku Teks