LEON ALEXIS. (2000). ERP DEMYSTIFIED. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.
Lua i Stíl Chicago (17ú heag.)LEON ALEXIS. ERP DEMYSTIFIED. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2000.
Lua MLA (9ú heag.)LEON ALEXIS. ERP DEMYSTIFIED. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.