Lilianto, G., N. Dewi, and N. Tri Martuti. “Kandungan Timbal, Debu Di Udara Dan Daun Tanaman Peneduh Di Kota Semarang”. Life Science, Vol. 7, no. 2, Nov. 2018, pp. 47-55, https://journal.unnes.ac.id/sju/UnnesJLifeSci/article/view/26965.