Kinnunen, R. (2001). Creating and testing of service ideas and service production concepts. Swedish School of Economics and Business Administration.
Lua i Stíl Chicago (17ú heag.)Kinnunen, Ritva. Creating and Testing of Service Ideas and Service Production Concepts. Helsingfors: Swedish School of Economics and Business Administration, 2001.
Lua MLA (8ú heag.)Kinnunen, Ritva. Creating and Testing of Service Ideas and Service Production Concepts. Swedish School of Economics and Business Administration, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.