Hafizhuddin, Muhammad Faiz, et al. “Diagnosa Radiografi Dan Penanganan Penyakit Periodontal Pada Anjing Yorkshire Terrier”. ARSHI Veterinary Letters, vol. 1, no. 2, Aug. 2017, pp. 23-24, https://doi.org/10.29244/avl.1.2.23-24.