Lalitsuradej, Ekasit, et al. “The Effect of Supplementation of Lactobacillus Paracasei HII01 on Salivary Cortisol, and Dehydroepiandrosterone Sulfate (DHEA-S) Levels”. Asian Journal of Medical Sciences, vol. 11, no. 1, Jan. 2020, pp. 12-15, https://www.nepjol.info/index.php/AJMS/article/view/26500.