Purnama, Agus, Irfan Hardian, Dayana Noprida, Hana Febriyanti, Aisah Mamang, Kemala Desi Wahidi, Nurmawati Nurmawati, et al. 2021. “Characteristics of Sleep Patterns in Patients Before COVID-19 Diagnosis”. STRADA : Jurnal Ilmiah Kesehatan 10 (1):206-12. https://doi.org/10.30994/sjik.v10i1.604.