Duhigg, Charles
The power of habit: why we do what we do, and how to change
Heinemann, 2012
 Buku Teks
Sexton, John
How free are we? : what the constitution says we can and cannot do
M. Evans and Company, 1986
 Buku Teks
Rao,K. Sujatha
Do we care?: India's health system
Oxford University Press, 2017
 eBooks
Cochrane, Susan H.
Fertility and education: what do we really know?
Johns Hopkins University Press, 1979
 Buku Teks
What do products/services cost how do we know?
 Artikel Jurnal