WG Suharta, IK Giri Nata, IG Antha Kasmawan, S Poniman and GN Sutapa 2018. THE EFFECT OF SINTERING TEMPERATURE AND MIXING TREATMENT ON CRYSTAL STRUCTURE AND MAGNETIC PROPERTIES OF Y-358 SUPERCONDUCTORS. GEOMATE Journal. 15, 50 (Apr. 2018), 149–154.