Thanasap, N. and Trimek, J. (2025) “A Study of Risk Behaviors in Substance Use among Vocational Certificate Students in an Educational Institution in the Peri-Urban Area”, Journal of Dhamma for Life , 31(3), pp. 383–400. available at: https://so08.tci-thaijo.org/index.php/dhammalife/article/view/5520 (accessed: 2 September 2026).