(1)
Bahtiar, S.; Islam, I.; Jayatri, A. U.; Widyawati, F.; Yanuar, E. Fabrication of Fe3O4 PEG 4000 Oleic Acid Ferrofluids on Crystal Structure and Magnetic Properties Using Rhee Sumbawa Iron Sand . J. Pijar.MIPA 2025, 20, 117-122.