D. A. . Purba, S. W. Nasution, and C. N. . Ginting, “Analysis of Nurse Ability In Preventing Nosocomial Infections on the 6b Floor Using the Nvivo Method”, jppipa, pendidikan ipa, fisika, biologi, kimia, vol. 9, no. SpecialIssue, pp. 344–349, Dec. 2023.