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“Implementasi Progressive Muscle Relaxation Efektif Menurunkan Kecemasan Anak SDN Tangkilsari 1 Banten Sebagai Penguat Program Reopen School: Implementation of Progressive Muscle Relaxation Effectively Reduces Anxiety in SDN Tangkilsari 1 Banten Children as Reinforcement for Reopen School Program”, JPKK, vol. 2, no. 1, pp. 28–35, Apr. 2022, doi: 10.25311/jpkk.Vol2.Iss1.1166.