Yudhawardana, Hartoyo, and Heri F. Lalus. “Analysis of Chemical Compound Content and Magnetic Properties of Iron Sand in Rondo Woing Village, East Manggarai”. Jurnal Pendidikan Fisika dan Teknologi 9, no. 1 (June 24, 2023): 133–142. Accessed May 9, 2024. http://www.jurnalfkip.unram.ac.id/index.php/JPFT/article/view/4897.