Longman dictionary contemporary English
chief editor, Paul Procter
Longman, 1982
Buku Referensi
Longman Dictionary of Contemporary English
Pearson Longman, 2006
Buku Referensi
Longman dictionary of contemporary English
Pearson Education, 2005
Multimedia
Longman dictionary of contemporary English
Pearson Education, 2005
Multimedia
Longman dictionary of the English language
Longman, 1984
Buku Referensi