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Harningsih, T. and Wimpy, W. 2020. Penentuan Kadar Timbal Dalam Darah Operator SPBU di Kota Karanganyar Berdasarkan Kebiasaan Merokok: Determination of Lead Levels in Blood Operator SPBU in The City of Karanganyar Based on Smoking Habit. Jurnal Surya Medika (JSM). 6, 1 (Aug. 2020), 57–62. DOI:https://doi.org/10.33084/jsm.v6i1.1618.