ANALISIS UKURAN PARTIKEL NANOKOMPOSIT Fe3O4/SiO2/ALGINAT MENGGUNAKAN SCHERRER FORMULA. SNPPM [Internet]. 2023 Dec. 27 [cited 2026 Jun. 11];7:32-5. Available from: https://www.journal.ubb.ac.id/index.php/snppm/article/view/4825