Nathan, Ernest D., author
Addison-Wesley, 1969
Buku Teks
Carol S. Pearson, editor
Berrett-Koehler, 2012
Buku Teks
Princeton University Press , 1961
Buku Teks
Abdulla Y. Al-Hawaj, editor
CRC Press, Taylor & Francis Group, 2008
Buku Teks
Jakarta LPEM-FEUI/USAID 1997,
Buku Teks