edited by Roy O. Grepp
Schenkman Publishing Company, Inc., 1963
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Freedman, Ronald
Irvington, 1975
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Nur A'isyah Amalia Putri
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2021
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Palmore, James A.
East West Center Press, 1987
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McNicoll, Geoffrey
Gadjah Mada University Press, 1986
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