Nurhikmah, A., S. HS, and K. Ramadani. “Biosorpsi Bogenvil (Bougainvillea Spectabilis Wild) Terhadap Emisi Timbal (Pb) Pada Kendaraan Bermotor”. Al-Kimia, Vol. 3, no. 2, July 2015, pp. 42-51, doi:10.24252/al-kimia.v3i2.1669.