edited by Harold B. Allen
McGraw-Hill, 1965
Buku Teks SO
Anderson, Wallace L.
Holt, Rinehart and Winston, 1966
Buku Teks SO
Miller, George A. [George Armitage], 1920-2012
Natuur & Techniek, 1993
Buku Teks
edited by Eric P. Hamp, Fred W. Householder, Robert Austerlitz
University of Chicago Press, 1966
Buku Referensi
Kainz, Friedrich
Ferdinand Enke, 1960, 1954, 1956
Buku Teks