Franklin, Gene F.
Addison-Wesley, 1990
Buku Teks
Pergamon Press, 1982
Buku Teks
Houpis, Constantine H., author
McGraw-Hill Book Comp., 1985
Buku Teks
Khanza Nadhifa, author
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2021
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Universitas Indonesia, 2011
UI - Skripsi Open