Stewart, Douglas
Angus and Roberson Publishers, 1962
Buku Teks SO
Merton, Stephen
Twayne Publishing, 1967
Buku Teks SO
edited by Denney G. Rutherford
Van Nostrand Reinhold, 1995
Buku Teks SO
Latour, Anny
Coward-McCann, 1958
Buku Teks SO
Asti Dwi Savitri
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2012
UI - Skripsi Open