Sebayang, Afrina Andriani br, Enrico Antonius, Elisabeth Victoria Pravitama, Jonathan Irianto, Shannen Widijanto, and Muhammad Syamsuddin. 2021. “Defining Causality in Covid-19 and Google Search Trends in Java, Indonesia Cases: A Retrospective Analysis”. Communication in Biomathematical Sciences 4 (2):81-92. https://doi.org/10.5614/cbms.2021.4.2.1.