YULIANTO, Tony; FAISOL, Faisol; ZAHROH, Fatimatus; SURYANTI, Sri; TAFRIKAN, Mohamad. Forecasting the recovery of COVID-19 patients in East Java using the Fuzzy time series Cheng method. Journal of Natural Sciences and Mathematics Research, [S. l.], v. 7, n. 1, p. 44–50, 2021. Disponível em: https://journal.walisongo.ac.id/index.php/JNSMR/article/view/11289. Acesso em: 7 jun. 2025.