Laisina, Edwin, and Edi Suharyadi. “Characterization of Crystal Structures and Magnetic Properties of Polyethylene Glycol (PEG-4000) and Silica Encapsulated Mn0.5Zn0.5Fe2O4 Nanoparticles”. Empiricism Journal 5, no. 2 (December 3, 2024): 214–223. Accessed January 29, 2026. https://journal-center.litpam.com/index.php/empiricism/article/view/2273.