Universidad Tecnológica de El Salvador

David Avrin

8 Livro

Por que os Clientes se Vão (e Como Recuperá-los)
David Avrin
Career Press, 2019
8 Book

Why Customers Leave (and How to Win Them Back)
David Avrin
Career Press, 2019
7 Book

Visibility Marketing
The No-Holds-Barred Truth About What It Takes to Grab Attention, Build Your Brand and Win New Business
David Avrin
Career Press, 2016