LEETHONG-IN, M., PIYAWATTANAPONG, S., SOMMONGKOL, S., THIENGTHAM, S. and KUMNIYOM, N. 2017. Effects of a Physical Activity and Brain Exercise Program on Cognitive Ability of Healthy Thai Elders. Walailak Journal of Science and Technology (WJST). 16, 1 (Dec. 2017), 1–8. DOI:https://doi.org/10.48048/wjst.2019.3818.