Jittsopa, Chaleewat, and Krisada Chienwattanasook. 2021. “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 8 (1):307-19. https://doi.org/10.14456/jmsnpru.2021.24.