Ishikawa, T., T. Ohmori, I. Murakoshi, C. Palanuvej, and N. Ruangrungsi. “Constituents of White and Black Pepper Oils: A Potential in Olfactory Stimulation”. Journal of Health Research, vol. 22, no. 2, Nov. 2018, pp. 101-3, https://he01.tci-thaijo.org/index.php/jhealthres/article/view/155609.