https://jurnal.ummi.ac.id/index.php/ummi/issue/feed Ummi 2021-11-04T12:23:06+07:00 Yanti Sundari [email protected] Open Journal Systems <p align="justify"><strong>Ummi: Jurnal penelitian dan Pengembangan Sains dan Teknologi </strong>is a peer-reviewed journal published by Muhammadiyah University of Sukabumi. UMMI<strong> is no longer published articles</strong></p>