WARDATUN, S.; MAHYUNI, S.; SRI MULYANI, J. The Effect of Ethanol Polarities on Tannin Content of Persea americana Mill Seeds Extract Using Gelatin Precipitation Method. Helium: Journal of Science and Applied Chemistry, [S. l.], v. 4, n. 2, p. 72–77, 2025. DOI: 10.33751/helium.v4i2.10. Disponível em: https://helium-fmipa.unpak.ac.id/index.php/he_jsac/article/view/10. Acesso em: 22 feb. 2025.