Bisschoff, Christo, and Sam Fullerton. “A Parallel of Patient Proactivity Behaviours and Attitudes Between the Republic of South Africa and the United States of America”. International Review of Management and Marketing 7, no. 3 (July 12, 2017): 93–104. Accessed December 25, 2024. https://econjournals.net.tr/index.php/irmm/article/view/4710.