YARLINA, V. P. Kajian Konsentrasi Etanol dan Metode Ekstraksi Propolis dari Lebah Jenis Trigona sp. Terhadap Aktivitas Antimikroba Bakteri Escherichia coli dan Beberapa Karakteristik Ekstrak Propolis [Study of Ethanol Concentration, Propolis Extraction Method and Characteristics of Propolis extract of Trigona sp. bees to Antimicrobial Activity of Escherichia coli]. Jurnal Teknologi & Industri Hasil Pertanian, [S. l.], v. 25, n. 1, p. 27–34, 2020. DOI: 10.23960/jtihp.v25i1.27-34. Disponível em: https://jurnal.fp.unila.ac.id/index.php/JTHP/article/view/3195. Acesso em: 26 jan. 2026.