Sihotang, Andreas, Septina Is Heriyanti, Sri Djangkung Sumbogo Murti, Fusia Mirda Yanti, Ahmad Farizt Ichsan, Alya Adiningtyas Putri, and Diah Riski Gusti. 2022. “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 10 (2). https://doi.org/10.24252/al-kimia.v10i2.32912.