Nopnarin, W. . . and Kanokthet, T. . . (2021) “Factors influencing preparation for becoming Quality elderly people in Mueang District, Phitsanulok Province”, Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University, 17(1), pp. 340–351. doi: 10.14456/psruhss.2023.24.