Amelia K, Luluk Cahyanti, Purwandari NP, Pramudaningsih IN, Nur HA, Yuliana AR. The Effect of Classical Music Therapy on Reducing Anxiety Levels in Preoperative Patients at RSI Sunan Kudus. PCICHT [Internet]. 2026 Oct. 6 [cited 2026 Oct. 7];4(2). Available from: https://proceedings.centamaku.ac.id/article/view/305