Ahmad Mustaqim Bin A.Halim; Suhadir Bin Shamsuddin. Influence of Chromium and Cobalt Doping On Structural Properties and Magnetic Imaging of Nd 0.75 Na 0.25 Mn 1-X Cr X O 3 and Nd 0.75 Na 0.25 Mn 1-Y Co Y O 3. EKST 2022, 2 (2), 167-175.