Yufriadi, F., and F. Syahriani. “Fiqh Siyasah Examination of the Dynamics of Implementation of Presidential Regulations on Covid-19 Vaccination in Pelalawan Regency, Riau”. Al-Qisthu: Jurnal Kajian Ilmu-Ilmu Hukum, vol. 21, no. 2, Dec. 2023, pp. 153-67, https://ejournal.iainkerinci.ac.id/index.php/alqisthu/article/view/2881.