Napitupulu, Manaor F. L., Giovani Arini, and Sara S. Ayutthaya. 2018. “Risk Factors and Aftermath of Stress on Female Commercial Flight Attendants in Indonesia”. Majalah Kedokteran UKI 34 (2), 61-68. http://ejournal.uki.ac.id/index.php/mk/article/view/864.