Sriwulaningdyah, Martini, and Erna Dwi Wahyuni. “The Development of a Six Sigma–Based Ulcus Decubitus Prevention Model to Respond to Adverse Events”. Jurnal Ners 12, no. 2 (October 1, 2017): 219–224. Accessed December 20, 2024. https://e-journal.unair.ac.id/JNERS/article/view/5241.