Pitriani, R. “Lemon Aroma Therapy For Overcoming Nausea Vomiting At First Trimester Pregnancy Clinic Primary Afiyah In Pekanbaru: Lemon Aroma Therapy For Overcoming Nausea Vomiting At First Trimester Pregnancy Clinic Primary Afiyah In Pekanbaru”. Journal of Midwifery and Nursing, vol. 2, no. 1, Dec. 2019, pp. 126-9, https://iocscience.org/ejournal/index.php/JMN/article/view/450.