Y E Gunanto; B Kurniawan; A Purwanto; Wisnu Ari Adi; S Poertadji. THE EFFECT OFCu-DOPING ON CRYSTAL STRUCTURE AND MAGNETORESISTANCE IN La0.73 Ca0.27 Mn1-Y CuyO3 WITH 0 < Y < 0.19. j. sains materi indonesia 2026, 14, 199-202.