Tarigan, S.N.K. et al. 2023. Effect of NaOH Concentration on Magnetic Properties and Structural Studies of MgFe2O4 Based on Natural Iron Sand Synthesized by Co-Precipitation Method. Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram. 11, 2 (Apr. 2023), 636–641. DOI:https://doi.org/10.33394/j-ps.v11i2.8092.