Nofriandi, F., F. Ferianto, J. Hendri, and B. Sjam. “The Relationship Of Knowledge And Attitudes With Covid-19 Prevention Behaviors In Online Ojek Drivers In Pekanbaru City”. Jurnal Ilmu Kesehatan Abdurrab, Vol. 1, no. 4, Dec. 2023, pp. 70-76, https://jurnal.univrab.ac.id/index.php/jika/article/view/4459.