Juanmala, D., Mettathamrong ๋., P. Upping, and C. Chaichana. “A Causal Relationship Model Impacting the Job Performance of Support Personel at Rajamangala University of Technology Isan”. RMUTI Journal Humanities and Social Sciences, vol. 12, no. 2, Nov. 2025, pp. 83-97, https://so05.tci-thaijo.org/index.php/RMUTI_SS/article/view/282064.