Arayasantiparb, Raweewan, Watinee Wanichwetin, and Danuchit Banomyong. 2020. “Prevalence and morphology of middle mesial canals in a group of Thai permanent mandibular molars from cone-beam computed tomography images”. Mahidol Dental Journal 37 (3). Bangkok, Thailand:271-77. https://he02.tci-thaijo.org/index.php/mdentjournal/article/view/246862.