GERNER , D. Unbalance and Balancing of the 4 Cylinder Engine: A Critical Analysis of Literature . Zede: Journal of Ethiopian Engineers and Architects የኢትዮጵያ መሐንዲሶችና አርክቴክቶች መጽሔት, [S. l.], v. 12, p. 21–30, 2023. Disponível em: https://ejol.aau.edu.et/index.php/ZEDE/article/view/6354. Acesso em: 10 apr. 2026.