RAIHAN, MUHAMMAD FADHIL (2024) Analisa Pengaruh Variasi Material Elektroda Busi Terhadap Kinerja Mesin dan Emisi Gas Buang Sepeda Motor Yamaha Freego 125 = Analysis of the Effect of Spark Plug Electrode Material Variations on Engine Performance and Exhaust Gas Emissions of Yamaha Freego 125 Motorcycles. Skripsi thesis, Universitas Hasanuddin.