Tran Thi Ngoc Bich, and Do Thi Thuy Van. 2017. “ RESEARCH ON EXTRACTION AND DETERMINATION OF CHEMICAL COMPOSITION OF ESSENTIAL OIL FROM PERILLA LEAVES IN QUANG NAM”. UED Journal of Social Sciences, Humanities and Education 7 (3), 1-5. https://doi.org/10.47393/jshe.v7i3.779.