Azizi, F., B. Musliu, A. Shehapi, and R. Isufi. “Solo Crowns, Dental and Periodontal Health”. ANGLISTICUM. Journal of the Association-Institute for English Language and American Studies, vol. 4, no. 10, Dec. 2016, pp. 113-20, https://anglisticum.org.mk/index.php/IJLLIS/article/view/1190.