Sihotang, A., S. Is Heriyanti, S. Djangkung Sumbogo Murti, F. Mirda Yanti, A. Farizt Ichsan, A. Adiningtyas Putri, and D. Riski Gusti. “The Effect of Metal Impregnation Of Fe Cu And Co on Surface Area of ZSM-5 Catalyst Analyzed Using Surface Area Analyzer (AAS)”. Al-Kimia, Vol. 10, no. 2, Dec. 2022, doi:10.24252/al-kimia.v10i2.32912.