Hauptfleisch, Andries. “Private Retirement Resorts in South Africa: Guidelines for Wellness and Sustainability in the Long Term.”. Suid-Afrikaans Tydskrif vir Natuurwetenskap en Tegnologie / <i>South African Journal of Science and Technology</i&gt; 32, no. 1 (February 25, 2013): 8 bladsye. Accessed December 22, 2024. http://satnt.co.za/index.php/satnt/article/view/339.