WASET
    Ilma Robo and  Saimir Heta and  Merilda Tarja and  Sonila Kapaj and  Eduart Kapaj and  Geriona Lasku,  Comparison between Different Classifications of Periodontal Diseases and Their Advantages.   journal   = {International Journal of Medical and Health Sciences}, [online]. World Academy of Science, Engineering and Technology.
    August 2022, vol. 188(8). 104 - 109
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10012618.