Aamoth, D. 2013. “Study Says We Unlock Our Phones a Lot Each Day.” Time, October 8. http://techland.time.com/2013/10/08/study-says-we-unlock-our-phones-a-lot-each-day.
ASTD (American Society for Training & Development). 2009. The Value of Evaluation: Making Training Evaluations More Effective. Alexandria, VA: ASTD Press.
ATD (Association for Talent Development). 2016a. Evaluating Learning: Getting to Measurements That Matter. Alexandria, VA: ATD Press.
———. 2016b. State of the Industry. Alexandria, VA: ATD Press.
———. 2017. Virtual Classrooms Now: Using Technology to Reach Today’s Workforces. Alexandria, VA: ATD Press.
Biech, E., ed. 2014. ASTD Handbook: The Definitive Reference for Training and Development, 2nd edition. Alexandria, ...