Ahmad Mustaqim Bin A.Halim, and 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”. Enhanced Knowledge in Sciences and Technology, vol. 2, no. 2, Nov. 2022, pp. 167-75, https://publisher.uthm.edu.my/periodicals/index.php/ekst/article/view/5541.