Bunyachatakul, S., P. Rattakorn, and P. Munkhetvit. “Improvement of attention and episodic memory functions in community-dwelling older adults with cognitive impairment: A preliminary study using a multimodal method”. Journal of Associated Medical Sciences, vol. 52, no. 3, Aug. 2019, pp. 205-11, https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/208670.