KOTTLER, Jeffery A.; UHLEMANN, Max R. Working with Difficult Clients: A Neglected Area of Study. Canadian Journal of Counselling and Psychotherapy, [S. l.], v. 28, n. 1, 2007. Disponível em: https://jhistsex.org/index.php/rcc/article/view/58489. Acesso em: 27 dec. 2025.