Al-Maimani, G., Taeyb, M., AlQahtani, A. H., Shata, M., & AlQahtani, S. M. (2017). Smoking prevalence among male secondary school students in Makkah region. International Journal Of Community Medicine And Public Health, 3(2), 538–541. https://doi.org/10.18203/2394-6040.ijcmph20160447