Christyaningsih, J., Sherly Amri, Q. S. A. and Rahayuningsih, C. K. (2023) “Lead Levels in the Urine of Active Smokers and Passive Smokers in the Surroundings of Wadung Asri Sidoarjo”, International Journal of Advanced Health Science and Technology, 3(4), pp. 266–273. doi: 10.35882/ijahst.v3i4.286.