Jung, Woo-Suk, Seung-Hyun Kim, Ill-Min Chung, Nagella Praveen, and Ateeque Ahmad. 2012. “Composition of the Essential Oil, Neutral Volatile Oil and Petroleum Ether Extract of Korean Perilla (Perilla Frutescens Britton) Leaves”. Asian Journal of Chemistry 24 (7):3221-24. https://asianpubs.org/index.php/ajchem/article/view/9334.