Vocal training intensity with 3 times a week to increase the quality and quantity of sleep on elderly
Vol. 3 / No. 1 / Pub. 2014-10 / Indonesian Journal of Community Health Nursing
Author: Cahyo Prasetyo Rifianto, Harmayetty, Ika Yuni Widyawati,
Vol. 3 / No. 1 / Pub. 2014-10 / Indonesian Journal of Community Health Nursing
Author: Cahyo Prasetyo Rifianto, Harmayetty, Ika Yuni Widyawati,
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