Komjakraphan, P., Isalamalai, S.- arun, Boonyasopun, U., & Schneider, J. K. (2013). Development of the Thai Family Support Scale for Elderly Parents (TFSS-EP). Pacific Rim International Journal of Nursing Research, 13(2), 118–132. Retrieved from https://he02.tci-thaijo.org/index.php/PRIJNR/article/view/6439