Ngo, Catherine, et al. “AN ARIMA-NARNN HYBRID TIME SERIES ANALYSIS OF DAILY BITCOIN PRICE DURING AND AFTER THE COVID-19 PANDEMIC OUTBREAK”. ShodhAI: Journal of Artificial Intelligence, vol. 2, no. 2, Nov. 2025, pp. 15–28, doi:10.29121/shodhai.v2.i2.2025.45.