Syafi’i, M. “MODEL PENYEBARAN NITROGEN DIOKSIDA (NO2) AKIBAT PROSES INDUSTRI”. Industri Inovatif : Jurnal Teknik Industri, Vol. 3, no. 1, Feb. 2013, pp. 24-34, https://mail.ejournal.itn.ac.id/industri/article/view/1326.