Lee, Ha Seok, author
Neupheul Hemaeneun Godaehan Sure
Doseo, 2005
Buku Teks
Nurdin Jusuf, author
Sure pengajana nabitta Muhammad S.A.W.
Departemen Pendidikan dan Kebudayaan RI, 1979
Buku Teks
Lytle, John T.
What do your customers really want? : here's a sure-fire way to find out / John F. Lytle
Golden Books Centre SDN.BHD, 1993
Buku Teks