Erfrandau, A., 		Murtaqib, M., & 		Widayati, N.
(2017).
 Pengaruh Terapi Tawa terhadap Kualitas Tidur pada Lansia di Unit Pelayanan Teknis Panti Sosial Lanjut Usia (UPT PSLU) Kabupaten Jember (The Effect of Laughter Therapy on Sleep Quality of Elderly in Long-Term Care Jember).
<em>Pustaka Kesehatan, 5</em>(2), 276 - 283.
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