Tirono, Mokhamad, and Farid Samsu Hananto. “Effective Treatment Time Using a Magnetic Field to Increase Soybean (Glycine Max) Productivity”. Jurnal Penelitian Pendidikan IPA 9, no. 7 (July 25, 2023): 5071–5077. Accessed November 25, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/3797.