SELIGMAN, Linda; GAASERUD, Lynn. Difficult Clients: Who Are They and How Do We Help Them?. Canadian Journal of Counselling and Psychotherapy, [S. l.], v. 28, n. 1, 2007. Disponível em: https://jmss.org/index.php/rcc/article/view/58491. Acesso em: 28 dec. 2025.