LaPalombara, Joseph, author
Conference Board, 1977
Buku Teks
Rien T. Segers, editor
Springer International Publishing, 2016
eBooks
Marquardt, Michael
Irwin, Profesional Publishing, 1994
Buku Teks
Stopford, John Morton
Basic Books, 1972
Buku Teks
Shapiro, Alan C.
John Wiley Sons, 1999
Buku Teks