Bahtiar, Syamsul, Fauzi Widyawati, Emsal Yanuar, Risky Ramadhan, Karen Zahra, and Syamsul Hidayat. “Preparation of Synthesis Nanoparticles Fe3O4 Based on Iron Sand Sumbawa ”. Jurnal Pijar Mipa 18, no. 6 (November 30, 2023): 959–963. Accessed November 22, 2024. http://jurnalfkip.unram.ac.id/index.php/JPM/article/view/5644.