práctico Hablar Centro de la ciudad tandem virtual Finito Endulzar uno
Tandem on NoHQ - Remote Work Toolkit
Amazon.com: Tandem learning on the Internet: Learner interactions in virtual online environments (MOOs) (Foreign Language Teaching in Europe): 9783631398258: Kötter, Markus: Books
Tandem Review: Making Remote Teams feel "In-Person"