Hasanah, Uswatun, Bhisma Murti, and Hanung Prasetya. 2021. “The Effectiveness of Aromatherapy and Music Therapy to Reduce Pain During Stage-1 of Birth Delivery: A Meta-Analysis”. Journal of Maternal and Child Health 6 (3):295-306. http://thejmch.com/index.php/thejmch/article/view/609.