Healthline. https://www.healthline.com/health/what-is-aromatherapy
Diakses pada 18 November 2019Healthline. https://www.healthline.com/nutrition/16-ways-relieve-stress-anxiety
Diakses pada 18 November 2019Psych Central. https://psychcentral.com/blog/5-ways-to-calm-your-mind-without-meditation/
Diakses pada 18 November 2019