from: Oak Ridge Institute for Science and Education (ORISE) https://www.orau.gov/cdcynergy/soc2web/Content/phase05/phase05_step03_deeper_qualitative_and_quantitative.htm
Ben-Eliyahu, A. (2014). Understanding Different Types of Research: What’s the Difference Between Qualitative and Quantitative Approaches? The Chronicle of Evidence-based Mentoring. Retrieved September 12, 2017.
Bergman, M. M. (2011). The Good, the Bad, and the Ugly in Mixed Methods Research and Design. Journal of Mixed Methods Research, 5(4), 271-275. doi:10.1177/1558689811433236
Caruth, G. D. (2013). Demystifying Mixed Methods Research Design: A Review of the Literature. Mevlana International Journal of Education, 3(2), 112-122. doi:10.13054/mije.13.35.3.2
Dellinger, A. B., & Leech, N. L. (2007). Toward a Unified Validation Framework in Mixed Methods Research. Journal of Mixed Methods Research, 1(4), 309-332. doi:10.1177/1558689807306147
Divan, A., Ludwig, L., Matthews, K., Motley, P., & Tomljenovic-Berube, A. (2017). Survey of Research Approaches in Scholarship of Teaching and Learning Publications: A Systematic Literature Review. Teaching & Learning Inquiry, 5(2), 16. doi:10.20343/teachlearninqu.5.2.3
Leech, N. L., & Onwuegbuzie, A. J. (2009). A Typology of Mixed Methods Research Designs. Quality & Quantity, 43(2), 265-275. doi:10.1007/s11135-007-9105-3
Morse, J. M. (2005). Evolving Trends in Qualitative Research: Advances in Mixed-Method Design. Qualitative Health Research, 15(5), 583-585. doi:10.1177/10497323052751
Schoonenboom, J., & Johnson, R. B. (2017). How to Construct a Mixed Methods Research Design. KZfSS Kölner Zeitschrift für Soziologie und Sozialpsychologie, 69(S2), 107-131. doi:10.1007/s11577-017-0454-1
Östlund, U., Kidd, L., Wengström, Y., & Rowa-Dewar, N. (2011). Combining Qualitative and Quantitative Research Within Mixed Method Rssearch Designs: A Methodological Review. International Journal of Nursing Studies, 48(3), 369-383. doi:10.1016/j.ijnurstu.2010.10.005