Shuter, Robert L.
McGraw-Hill, 1966
Buku Teks
Kristjánsson, Kristján
Cambridge University Press, 2010
eBooks
Feldman, Richard
Prentice-Hall, 1999
Buku Teks
Blumer, Herbert
University of California Press, 1998
Buku Teks
Seli Muna Ardiani
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2022
UI - Tugas Akhir