-
Facts on File, Inc. p. 23. ISBN 0-8160-3846-5. "
Blokletters – TV en
Radio DataBase". "
Blokletters @
Beeld en Geluidwiki". السعودية (2017-05-27). "مسابقة...
- with Zaid Zghoul. Netherlands – A
Dutch version of the show
called Blokletters (Block Letters) ran for a
brief period from 1986 on AVRO with Fred Oster...