CHEKOUAL, Lilia, et al. “EFFECT OF ULTRASOUND PRETRAITMENT ON THE QUALITY AND ANTIMICROBIAL ACTIVITY OF ESSENTIAL OILS FROM FOUR WILD POPULATIONS OF ALGERIAN LAVANDULA STOECHAS L.: COMPARISON WITH CONVENTIONAL HYDRODISTILLATION”. Journal of Applied Biological Sciences, vol. 15, no. 1, Feb. 2021, pp. 75-90, https://www.jabsonline.org/index.php/jabs/article/view/799.