Boonkerd, S., Rabampho, P., Namphonkrang, P. and Paikoh, K. 2021. Effects of The Brain Training Program on Cognitive Ability among Older person at Dementia Risk Group of the Elderly Home, Nakhon Ratchasima Provincial Administrative Organization. Journal of The Royal Thai Army Nurses. 22, 3 (Dec. 2021), 339–347.