Sircar, Muhammad Jamiruddin, author
Form International, 2003
Buku Teks
Hutchinson, Harry D., author
Appleton-Century-Crofts, 1967
Buku Teks
Hutchinson, Harry D., author
Meredith Corporation, 1971
Buku Teks
Przeworski, Adam, author
Cambridge, 2003
Buku Teks
Ulrichsen, Kristian, author
Palgrave Macmillan, 2016
Buku Teks