Saifudin, Saifudin, Nurul Muhayat, Eko Surojo, Yupiter HP Manurung, and Triyono Triyono. 2022. “Mitigation of Porosity and Residual Stress on Car Body Aluminum Alloy Vibration Welding: A Systematic Literature Review”. Automotive Experiences 5 (3): 477-93. https://doi.org/10.31603/ae.7965.