Putra, A.A. Made, 		Suharta, W. G., AND 		Suardana, P..
" Effect of Silver (Ag) Addition on the Forming Of Y-247 Superconductors (Y2Ba4Cu7O15-?) using Wet Mixing Method" <em>BULETIN FISIKA</em> [Online], Volume 20 Number 1 (8 March 2019)