1. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches;Creswell,2017
2. Overview of qualitative research;Grossoehme;J Health Care Chaplain,2014
3. Practical Theology and Qualitative Research;Swinton,2016
4. Alternative approaches to research in physical therapy: positivism and phenomenology;Shepard;Phys Ther,1993
5. Athletic identity: an Achilles' heel to the survival of self;Sparkes;Qual Health Res,1998