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, [S. l.], v. 1, p. V124012, 2024. DOI: 10.31603/biseeng.35. Disponível em: https://unimma.press/conference/index.php/biseeng/article/view/35. Acesso em: 10 jan. 2025.