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Fakultas Kesehatan Masyarakat Universitas Indonesia, 2012
UI - Skripsi (Open)
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Fakultas Kesehatan Masyarakat Universitas Sumatera Utara, 2012
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Buku Teks
Dreisbach, Robert H., author
Lange Medical Publications , 1983
Buku Teks
Mirza Fajar Wicaksono, author
Universitas Indonesia, 2009
UI - Tesis (Open)