Marniati, Sri Misleini and Zuidah (2021) “The Influence Of Pre-Operative Health Education To The Self-Concept Improvement On Femoral Fracture Patientsat Haji Medan Hospital Of North SumateraGovernment In 2021”, International Journal of Science, Technology & Management, 2(5), pp. 1566-1573. doi: 10.46729/ijstm.v2i5.306.