F. Benaissa, I. Bendahmane, N. Bourfis, O. Aoulaiche, and R. Alkama, “Bioindication of Urban Air Polycyclic Aromatic Hydrocarbons Using Petunia Hybrida”, Civ Eng J, vol. 5, no. 6, pp. 1305–1313, Jun. 2019.