DE WAAL, E. Random drug-testing: the duty to act against learners who use drugs. Acta Academica: Critical views on society, culture and politics, [S. l.], v. 39, n. 2, p. 228–246, 2007. DOI: 10.38140/aa.v39i2.1147. Disponível em: https://journals.ufs.ac.za/index.php/aa/article/view/1147. Acesso em: 2 apr. 2025.