Harahap, Desy Aryani, Zulham Yamamoto, Sry Suryani Widjaja, and Evita Mayasari. “Direct PCR for Escherichia Coli: A Straightforward and Cost-Effective Method”. JURNAL KESMAS DAN GIZI (JKG) 7, no. 2 (April 30, 2025): 223–228. Accessed May 2, 2025. https://ejournal.medistra.ac.id/index.php/JKG/article/view/2606.