Soytong, S. and Kanokthet, T. 2026. Factors Associated with E-Cigarette Use among Undergraduate Students in Phetchabun Province, Thailand: A Cross-Sectional Study. Journal of Health Science and Alternative Medicine. 8, 02 (Aug. 2026), 54–62. DOI:https://doi.org/10.14456/jhsam.2026.7.