Arayasantiparb, R. ., W. Wanichwetin, and D. . Banomyong. “Prevalence and morphology of middle mesial canals in a group of Thai permanent mandibular molars from cone-beam computed tomography images”. Mahidol Dental Journal, vol. 37, no. 3, Oct. 2020, pp. 271-7, https://he02.tci-thaijo.org/index.php/mdentjournal/article/view/246862.