1. ATD Research, IACET, & Rothwell and Associates. (2015). Skills, challenges, and trends in instructional design. ATD Research. https://www.iacet.org/default/assets/File/pdfs/2015%20ATD_Research_Skills_Challenges_and_Trends_in_Instructional_Design.pdf
2. Babbie, E. (2010). The practice of social research (12th ed.). Wadsorth.
3. Beirne, E., & Romanoski, M. (2018). Instructional design in higher education: Defining an evolving field. Online Learning Consortium. https://olc-wordpress-assets.s3.amazonaws.com/uploads/2018/07/Instructional-Design-in-Higher-Education-Defining-an-Evolving-Field.pdf
4. Bengtsson, M. (2016). How to plan and perform a qualitative study using content analysis. NursingPlus Open, 2, 8-14. https://doi.org/10.1016/j.npls.2016.01.001
5. Berrett, D. (2016, February 29). Instructional Design: Demand growth for a new breed of academic. The Chronicle of Higher Education. https://www.chronicle.com/article/Instructional-Design/235425