Student Book

• https://intercambio.org/wp-content/uploads/2022/09/Inro-Student-Book-Preview.pdf

Vocabulary Cards

• https://intercambio.org/wp-content/uploads/2024/09/Intro-Vocabulary-Cards-1.pdf

iPhone App

• https://apps.apple.com/us/app/intercambio-app/id1477549098

Android App

• https://play.google.com/store/apps/details?id=com.intercambio