Yakoeb, A. R., Fitriana, E. V. Yulivantina, and E. Ernawati. “The Effectiveness of Giving Lavender (Lavandula Angustifolia) Aromatherapy to Reduce Labor Pain: A Systematic Literature Review”. Journal of Health (JoH), Vol. 9, no. 1, Jan. 2022, pp. 17-23, doi:10.30590/joh.v9n1.281.