Amornsettachai, P., S. Suphangul, and T. Bokam. “A 3 Years Retrospective Analysis of Survival Rate of Thai Dental Implant (PW PLUS®) in 23 Patients”. Chiang Mai Dental Journal, Vol. 39, no. 2, July 2018, pp. 47-55, https://he01.tci-thaijo.org/index.php/cmdj/article/view/195442.