“Experimental Study of the Use of Brown Gas HHO (Hydro Hydrogen Oxy) Produced by Variation of the Number of Electrodes Plates on the Performance of a 4-Step Motor”. Proceedings Series of Borobudur International Symposium on Energy and Engineering, vol. 1, Nov. 2024, p. V124012, https://doi.org/10.31603/biseeng.35.