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Buku Teks
Tornyay, Rheba de, author
John Wiley & Sons, 1987
Buku Teks
Yunita Hasri Herdianti, author
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2012
UI - Skripsi (Open)
Delphin, Patricia
Virgnia Reston publishing 1983 , 1983
Buku Teks
Keating, Sarah B, author
Lippincott Williams & Wilkins, 2006
Buku Teks