JOHN, Sonja. Clown for Change - Cartoonist Marty Two Bulls as a Modern Heyoka. Ethiopian Journal of Social Sciences, [S. l.], v. 4, n. 2, 2018. Disponível em: https://journals.bdu.edu.et/index.php/ejss/article/view/107. Acesso em: 13 jun. 2026.