Farmer, Paul
EC Tax Law/Paul Farmer, Richard Lyal
Clarendon Press, 1994
 Buku Teks
Demers, Richard A.
A linguistics workbook / Richard A. Demers, Ann K. Farmer
MIT Press, 1991
 Buku Teks SO
Stillman, Richard N.
The Strategy of investment / Richard N. Stillman
Holt, Rinehart and Winston, 1962
 Buku Teks
Cary, Richard
Mary N. Murfree / Richard Cary
Twayne Publishers, 1967
 Buku Teks SO
Roberts, Richard A., 1935-
An introduction to applied probability / Richard A. Roberts
Massachusetts Addison-Wesley, 1992
 Buku Teks SO