Kusworo, T. D., Kumoro, A. C., Al-Aziz, H., Utomo, D. P. “Pyro-gasification of Rice Husk to Bio-fuel: An Optimization Study of Process Parameters”, Periodica Polytechnica Chemical Engineering, 67(2), pp. 296–309, 2023. https://doi.org/10.3311/PPch.21723