Barnet, Sylvan
Bedford/St. Martin's, 2002
Buku Teks SO
Barnet, Sylvan
Bedford/St Martin's, 2014
Buku Teks SO
Crusius, Timothy W.
McGraw-Hill, 2002
Buku Teks SO
Strunk, William
Macmillan, 1959
Buku Teks SO
Stafford, William
McGraw-Hill, 1966
Buku Teks SO