Susanti, Sinta Wahyu, and Purwanti Pratiwi Purbosari. “Literacy and Attitude Toward Covid-19 and Its Vaccination Among 8th-Grade Students in Sub-Districts of Gunungkidul With Different Time of Occurrence of The First Case ”. Jurnal Penelitian Pendidikan IPA, vol. 8, no. 3, July 2022, pp. 1635-43, doi:10.29303/jppipa.v8i3.1716.