Intachai, W. “Combined Periodontal Surgery and Orthodontic Traction for Permanent Impacted Maxillary Central Incisor: A Case Report”. Lampang Medical Journal, vol. 33, no. 1, Oct. 2022, pp. 69-77, https://he01.tci-thaijo.org/index.php/LMJ/article/view/259429.