Kapp, D. ., G. J. . Gericke, and J. W. . Muchiri. “Face Validity and Content Assessment of a Diabetes Nutrition Education DVD for Low Literacy Adults Living With Diabetes: A Mixed-Method Study”. Journal of Endocrinology, Metabolism and Diabetes of South Africa, vol. 27, no. 2, Oct. 2022, pp. 83-92, doi:10.1080/16089677.2022.2048470.