?url_ver=Z39.88-2004&rft_id=10.3997%2F2214-4609.201900411&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=E.M.H.&rft.au=Masyhur%2C+E.M.H.&rft.aulast=Masyhur&rft.isbn=9789462822740&rft.title=Utilization+of+air+wave+to+determine+the+quality+of+seismic+refraction+data+in+near+surface+geophysical+survey&rft.date=2019&rft.genre=proceeding