JACKSON PETER C. (1985). MANAGING YOUR BUSIENSS WITH LOTUS 1-2-3. PHOENIX PUBLISHING PVT LTD.
Lua i Stíl Chicago (17ú heag.)JACKSON PETER C. MANAGING YOUR BUSIENSS WITH LOTUS 1-2-3. BUSHEY HERTS: PHOENIX PUBLISHING PVT LTD, 1985.
Lua MLA (9ú heag.)JACKSON PETER C. MANAGING YOUR BUSIENSS WITH LOTUS 1-2-3. PHOENIX PUBLISHING PVT LTD, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.