Firdaus, A.P. and Sulistyono, L. 2018. Correlation between SO2 with Acute Respiratory Infection in Surabaya City 2013–2015. JURNAL KESEHATAN LINGKUNGAN . 9, 1 (Jul. 2018), 40–47. DOI:https://doi.org/10.20473/jkl.v9i1.2017.40-47.