Kusumaningtiyas, Z. A., and Y. Ryadi. “Meta-Analysis: Effect of Cigarette Smoke Exposure on Pregnant Women As Passive Smokers on Low Birth Weight”. Journal of Epidemiology and Public Health, vol. 7, no. 2, Apr. 2022, pp. 232-40, doi:10.26911/jepublichealth.2022.07.02.08.