Triyana, Triyana, et al. “Behavior Analysis of Drop-Out Patients Physiotherapy Services at the Regional General Hospital Arifin Achmad, Riau Province”. Jurnal Kesehatan Komunitas (Journal of Community Health), vol. 7, no. 2, Sept. 2021, pp. 182-8, https://jurnal.htp.ac.id/index.php/keskom/article/view/596.