Irawan, Andik, Dicky Adi Tyagita, and Naning Retnowati. “Crystallization Machine for Making Supplements to Prevent Covid 19 in Kemuning Lor Village, Jember”. J-Dinamika : Jurnal Pengabdian Masyarakat 5, no. 2 (December 30, 2020): 11–14. Accessed May 11, 2021. https://publikasi.polije.ac.id/index.php/j-dinamika/article/view/2396.