"Learning AOSP" - Android Hardware Abstraction Layer (HAL)
ODROID Magazine September 2014
Building Android Devices
Odroid Magazine March 2014
ODROID Magazine June 2014
ODROID Magazine May 2014
ODROID Magazine April 2014
Peeking into Android Source
ODROID Magazine October 2014
ODROID Magazine December 2014
ODROID Magazine January 2015
ODROID Magazine June 2015
Inside Android Framework
ODROID Magazine July 2015
Learning AOSP - Building AOSP for Nexus 7
Dissecting Android Wear
Android Internal Services
Diving inside Android Wifi
Android Brillo
Android Source Code