PENNER, Wes; TRUAX, Charles B. The Hippy Love and Humanita Ideology: Giving or Needing?. Canadian Journal of Counselling and Psychotherapy, [S. l.], v. 7, n. 1, 2012. Disponível em: https://cdm.ucalgary.ca/index.php/rcc/article/view/59895. Acesso em: 3 jan. 2026.