Sebayang, A. A. br, Antonius, E., Pravitama, E. V., Irianto, J., Widijanto, S. and Syamsuddin, M. (2021) “Defining Causality in Covid-19 and Google Search Trends in Java, Indonesia Cases: A Retrospective Analysis”, Communication in Biomathematical Sciences, 4(2), pp. 81-92. doi: 10.5614/cbms.2021.4.2.1.