• Ongsara, W. et al. (2020). Optimism and Perceived Organization Support Predicting Job Performance of Physiotherapists in Private Clinics and Hospitals in Bangkok, Thailand. Solid State Technology. Vol. 3 No.5 : 2452-2467
• Ongsara, W. and Pathanapakdee, N. (2021). Positive Psychological Capital and Self-Directed Learning Predicting Job Performance in Physiotherapists. Turkish Journal of Computer and Mathematics Education. Vol.12 No.3 : 5197-5205