Suandy, Girsang E, Nasution AN, Lister INE. Analysis of Protein Content, Spectrophotometry FT-IR, and Antibacterial Effects of Earthworm (Eudriluseugenia). ASRJETS-Journal. 2020;63(1):94-101. Accessed October 2, 2025. https://www.asrjetsjournal.org/American_Scientific_Journal/article/view/5490