Pattanachaipuvanon, P., and M. Ratanajanchai. “Viscoelasticity at initial setting and gelation time of a short-term soft liner incorporated with clove, star anise, and kaffir lime essential oils”. Mahidol Dental Journal, vol. 41, no. 2, Aug. 2021, pp. 122-31, https://he02.tci-thaijo.org/index.php/mdentjournal/article/view/247719.