Bramantiyo, R., E. Lestianingrum, and R. B. Cahyono. “Industrial Application of Rice Husk As an Alternative Fuel in Cement Production for CO2 Reduction”. ASEAN Journal of Chemical Engineering, Vol. 22, no. 2, Dec. 2022, pp. 364-72, https://journal.ugm.ac.id/v3/AJChE/article/view/9260.