1.
Social-benefit certification as a game / Ralf Buckley
Autor:
Buckley, Ralf
2.
Online travel reviews as persuasive communication: The effects of content type, source, and certification logos on consumer behavior / Beverley A. Sparks, Helen E. Perkins, Ralf Buckley
Autor:
Sparks, Beverley
Coautor:
;
Perkins, Helen E.
Buckley, Ralf