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Copyright of JKM (Jurnal Kesehatan Masyarakat) Cendekia Utama. ISSN: 2338-6347 (Print) dan 2580-992X (Online).
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Nurhawati Siregar
Institut Kesehatan Helvetia
Indonesia
Juliandi Harapap
Universitas Sumatera Utara
Indonesia
Razia Begum Suroyo
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Copyright of JKM (Jurnal Kesehatan Masyarakat) Cendekia Utama. ISSN: 2338-6347 (Print) dan 2580-992X (Online).