Mager, N. H.
Encyclopedic dictionary of English usage
Prentice-Hall, 1975
Buku Referensi
The Great family encyclopedic dictionary
Bay Books, 1986
Buku Referensi
The encyclopedic dictionary of psychology
editor, Rom Harre, Roger Lamb
Blackwell Reference, 1983
Buku Referensi
Encyclopedic dictionary of mathematics
The MIT Press, 1987,
Buku Referensi
Encyclopedic dictionary of mathematics
The MIT Press, 1987,
Buku Referensi