Šljivo, A., et al. “Patterns of Cigarette, Hookah and Other Tobacco Product Consumption Habits Among Undergraduate Students of the University of Sarajevo before the COVID-19 Outbreak in Bosnia and Hercegovina, a Cross-Sectional Study”. Annali Di Igiene Medicina Preventiva E Di Comunità, vol. 34, no. 1, Sept. 2025, pp. 45-53, https://doi.org/10.7416/ai.2021.2469.