20 years of achievements 1981-2001 [Text] / ; State Information Service ; Translation, art production and word processing by: The Foreign Editing Department, English Section. ; Translation Review by Sh. Mansour... – [S. l.] : S.I.S Press House, 2001. - 142 p. , ill.; . – Sources: p. 141 . – [n. c.] (hard cover) : 80 tg.