Martin, Stephen, 1961-, author
Maxwell Macmillan International, 1994
Buku Teks
Mund, Vernon A., author
Appleton-Century-Crofts, 1971
Buku Teks
Asep Wahyu Hidayat, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2022
UI - Tugas Akhir
Bozeman, Barry, author
St. Martin's Press, 1979
Buku Teks
Gohagan, John Kenneth, author
McGraw-Hill, 1980
Buku Teks