?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Maulana%2C+Rayhan&rft.aulast=Maulana&rft.aufirst=Rayhan&rft.title=Karakteristik+Sistem+Pengapian+terhadap+Emisi+Gas+Buang+dan+Durability+Sepeda+Motor+Sonic+150cc+dengan+Metode+Taguchi&rft.inst=Universitas+Negeri+Padang&rft.date=August+2025&rft.degree=Bachelor%2FSkripsi