Abdul Rahim , Norhayati Rafida, and Nur Iftikhar Che Saperiz. “Effectiveness of Public Service Announcement on Halal Knowledge Among Muslim Teenagers in Time of Pandemic”. Ulum Islamiyyah, vol. 33, no. S5, Dec. 2021, pp. 5-18, doi:10.33102/uij.vol33noS5.399.