Rakguson, Rapeepat, Saisunee Lertkratoke, Pringploy Nantapornsiripong, Lalita Pattanapho, and Kanokporn Ngomsoongnoen. “The Effect of a Self-Efficacy Enhancement Program on the Determination to Refuse Kratom Use Among University Students in Nakhon Ratchasima Province”. Journal of Nursing and Public Health Research 5, no. 1 (March 27, 2025): e270378. accessed September 22, 2026. https://he02.tci-thaijo.org/index.php/jnphr/article/view/270378.