Udomsri, O., and K. Jantaroad. “The effects of promoting practical nursing while complying with pressure ulcer prevention guidelines, Male medical ward 2, Nakornping Hospital”. Journal of Nakornping Hospital, vol. 14, no. 1, June 2023, pp. 136-50, https://he01.tci-thaijo.org/index.php/jnkp/article/view/260416.