Lidie, S., & Walsh, N. (2002). Mastering Perl/Tk (1. Edtion.). O`Reilly.
Lua i Stíl Chicago (17ú heag.)Lidie, Steve, agus Nancy Walsh. Mastering Perl/Tk. 1. Edtion. Beijing, Cambridge (u.a.): O`Reilly, 2002.
Lua MLA (8ú heag.)Lidie, Steve, agus Nancy Walsh. Mastering Perl/Tk. 1. Edtion. O`Reilly, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.