Purnama, A.; Hardian, I.; Noprida, D.; Febriyanti, H.; Mamang, A.; Wahidi, K. D.; Nurmawati, N.; Primasari, L.; Rinawati, R.; Murtini, S. Characteristics of Sleep Patterns in Patients Before COVID-19 Diagnosis. sjik 2021, 10, 206-212.