KAMPPINEN, M.; JAKONEN, J.; ILLMAN, R. Systems thinking, spirituality and wisdom: perspectives on Ken Wilber. Approaching Religion, [S. l.], v. 5, n. 2, p. 1–2, 2015. DOI: 10.30664/ar.67569. Disponível em: https://journal.fi/ar/article/view/67569. Acesso em: 3 may. 2024.