Wiboonwipa, P., N. Thiengkamol, and T. K. Thiengkamol. “Model of Knowledge of Pesticide Use and Primary Health Care”. Journal of Industrial Education, vol. 14, no. 2, Aug. 2015, pp. 719-26, https://ph01.tci-thaijo.org/index.php/JIE/article/view/122631.