Purnama, T. B., Simamora, J., Augie, D., Simanjuntak, S. F. S., Hardja, B. A. R., Pratiwi, D., & Reza, M. (2026). Temporal Effects of Extended Holiday Periods on COVID‑19 Transmission During First Wave of Pandemic in Medan, North Sumatera, Indonesia. International Journal of Epidemiology and Tropical Medicine, 1(1). https://www.barunari.com/ijetm/article/view/42