BOCCUZZI, Mark. Spirit Voices: The First Live Conversation between Worlds by Mark L. Cowden. Journal of Scientific Exploration, [S. l.], v. 30, n. 3, 2016. Disponível em: https://www.journalofscientificexploration.org/index.php/jse/article/view/1077. Acesso em: 27 apr. 2026.