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Lua i Stíl Chicago (17ú heag.)Rai, Alok Kumar. Customer Loyalty. NEw Delhi: TMH, 2014.
Lua MLA (9ú heag.)Rai, Alok Kumar. Customer Loyalty. TMH, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.