KAJIAN EKSPERIMENTAL PENGARUH PADUAN TIMAH AKI (10%, 15%, 20%, 25%) PADA CORAN TEMBAGA PIPA AC (AIR CONDITIONER) BEKAS TERHADAP SIFAT MEKANIK - Alian, Helmy; Mechanical Engineering Department Faculty of Engineering Sriwijaya University (Sriwijaya University, 2013)