Hanum, F. F., Y. Pramudya, F. M. A. . Chusna, E. R. Desfitri, I. Hapsauqi, and N. A. Z. Amrillah. “An Analysis of Coal Fly Ashes from Different Combustion Processes for The Agricultural Utilization”. Journal of Applied Agricultural Science and Technology, vol. 7, no. 2, May 2023, pp. 73-81, doi:10.55043/jaast.v7i2.79.