Suseno, Jatmiko Endro, Agus Setyawan, and Thessa Putri Aulia. 2025. “Smart Fish Feeder by Measuring the Number of Pond Water Surface Vibrations Based on the Fish Hunger Levels”. Jurnal Penelitian Pendidikan IPA 11 (3):261-66. https://doi.org/10.29303/jppipa.v11i3.10342.