Jackson, Holbrook
The Eighteen nineties
Bantam Books, 1954
Buku Teks SO
Working at the interface of cultures: eighteen lives in social science
Routledge, 1997
Buku Teks SO
Shuman, George D.
18 (eighteen) seconds = 18 (delapan belas) detik
Gramedia Pustaka Utama, 2011
Buku Teks SO
Aude, Karen
Sophisticated surfaces : ideas and inspirations from eighteen professional surface painters
Rockport, 1999
Buku Teks SO
Aude, Karen
Sophisticated surfaces : ideas and inspirations from eighteen professional surface painters
Rockport Publishers, 1999.
Buku Teks SO