السفياني عبدالرحمن محمد. Impact of OHS Practices on Employee Engagement An Applied Study in Five-Star Hotels in the City of Sana’a. Humanities and Educational Sciences Journal, [S. l.], v. 8, n. 20, p. 444–471, 2022. DOI: 10.55074/hesj.v8i20.400. Disponível em: https://hesj.org/ojs/index.php/hesj/article/view/400. Acesso em: 9 nov. 2026.