PENGARUH TERAPI MUSIK KELOMPOK TERHADAP TINGKAT KESEPIAN LANJUT USIA DI PANTI SOSIAL TRESNA WERDHA YOGYAKARTA UNIT BUDHI LUHUR KASONGAN BANTUL by , LAILIA NURAINI, , Sri Warsini,S.Kep.,Ns.,M.Kes.

“…Background: The process of aging causes physical, mental and social changes in the elderly that may affect psychological condition especially in those living at social institution. …”