Pereira Simão, Manoel José. “Transpersonal Psychology and Spirituality: DOI: 10.15343 0104-7809.20104508519”. O Mundo Da Saúde, vol. 34, no. 4, Oct. 2010, pp. 508-19, https://revistamundodasaude.emnuvens.com.br/mundodasaude/article/view/594.