Bruce, Martha
Rights and duties of directors
Bloomsbury Proffesional, 2012
 Buku Teks
Nicolson, Miklos S.
Duties and liabilities of corporate officers and directors
Prentice-Hall, 1972
 Buku Teks
Handbook of research on reading comprehension
edited by Susan E. Israel, Gerald G. Duffy
Routledge, 2009
 Buku Referensi
Handbook of political Communication research
Lawrence Erlbaum Associates, 2004
 Buku Teks
The Sage handbook of qualitative research
edited by Norman K. Denzin, Yvonna S. Lincoln
Sage, 2011
 Buku Referensi