Jittsopa, C., and K. Chienwattanasook. “Organizational Citizenship Behavior and Iddhipada-4 Affecting Work Performance of Employee in Manufacturing Industry in Phra Nakhon Si Ayutthaya Province”. Journal of Management Science Nakhon Pathom Rajabhat University, vol. 8, no. 1, June 2021, pp. 307-19, doi:10.14456/jmsnpru.2021.24.