Spady, William. “It’s Time to End the Decade of Confusion about OBE in South Africa”. Suid-Afrikaans Tydskrif vir Natuurwetenskap en Tegnologie / <i>South African Journal of Science and Technology</i&gt; 27, no. 1 (September 16, 2008): 17-29. Accessed December 22, 2024. http://satnt.co.za/index.php/satnt/article/view/206.