Lorensia, A., M. M. A. . Jalmav, Z. . Dhiba, and R. V. . Suryadinata. “Risk of Vitamin D Deficiency in Smokers: Mix-Method ”. Media Kesehatan Masyarakat Indonesia, vol. 20, no. 2, June 2024, pp. 85-101, doi:10.30597/mkmi.v20i2.32775.