JOHNSON J. R. (1994). SOFTWARE FACTORY. BPB PUBLICATION.
Lua i Stíl Chicago (17ú heag.)JOHNSON J. R. SOFTWARE FACTORY. BPB PUBLICATION, 1994.
Lua MLA (9ú heag.)JOHNSON J. R. SOFTWARE FACTORY. BPB PUBLICATION, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.