Android 9 Libro

Apogeo

Android 9: Guida completa per lo sviluppo di applicazioni mobile

Packt Publishing

Android 9 Development Cookbook: Over 100 recipes and solutions to solve the most common problems faced by Android developers, 3rd Edition (English Edition)

beautiful android women fashion edition Vol.9 (English Edition)

Payload Media, Inc.

Android Studio 3.4 Development Essentials - Java Edition: Developing Android 9 Apps Using Android Studio 3.4, Java and Android Jetpack

Android 9 Digital Photograpy: The Unofficial Mini-Guide (English Edition)

Android 9编程通俗演义                                  

Jorge Santiago Nolasco Valenzuela

Android para Novatos (Spanish Edition)          

Area51 Publishing

Corso di programmazione per Android. Livello 9 (Esperto in un click Vol. 45)

Android Services & App Development 9.0 (English Edition)

Area51 Publishing

Android Studio Videocorso. Volume 9