S. Sungkamanee, S. Ladawan, S. Maharan, P. Aumput, A. Srithawong, and N. Sriraksa, “Effects of aromatherapy massage with bergamot essential oil on vital sign, flexibility, stress level and stress hormone in healthy adults: a pilot study”, Arch AHS, vol. 34, no. 1, pp. 1–8, Apr. 2022.