Harningsih, Tri, and Wimpy Wimpy. “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, no. 1 (August 29, 2020): 57–62. Accessed April 26, 2024. https://journal.umpr.ac.id/index.php/jsm/article/view/1618.