Putsom, W., and J. Junbua. “The Causal Factors of Leader-Member Exchange, in-Role Job Performance and Innovative Job Performance That Affecting Job Satisfaction of Employees”. Rajabhat Chiang Mai Research Journal, vol. 21, no. 3, Oct. 2020, pp. 174-92, doi:10.14456/rcmrj.2020.240159.