Wulandari, D.D. et al. 2021. The Effect Of Using Personal Protection Equipment (PPE), Mileage, And Smoking Habits On Hair Lead (Pb) Levels: Pengaruh Penggunaan Alat Pelindung Diri (APD), Jarak Tempuh Dan Kebiasaan Merokok Terhadap Kadar Timbal (Pb) Rambut. Medicra (Journal of Medical Laboratory Science/Technology). 4, 1 (Aug. 2021), 50–53. DOI:https://doi.org/10.21070/medicra.v4i1.1435.