Turner, Jonathan H.
Inequality : privilege & poverty in America
Goodyear, 1976
 Buku Teks SO
Language :journal of the linguistic society of America
Baltimore : The Linguistic Society of America
 Majalah, Jurnal, Buletin
Otto, Mary
Teeth : the story of beauty, inequality, and the struggle for oral health in America
The New Press, 2017
 Buku Teks SO
Language in America : a report on our deteriorating semantic environment
edited by Neil Postman, Charles Weingartner, and Terence P. Moran
Bobbs-Merrill, 1979
 Buku Teks SO
Carroll, John B.
Study of language survey of linguistics and related diciplines in America / John B. Carroll
Harvad University Press, 1953
 Buku Referensi