Ralph J. DiClemente, John S. Santelli, Richard A. Crosby
Jossey-Bass, 2009
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Nuril Rahmatika, author
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UI - Tesis Membership
Shucksmith, Janet, author
Routledge, 1998
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Marella Matta, author
Universitas Indonesia, 2014
UI - Skripsi Membership
Antonius Yudi Kristanto, author
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2014
UI - Tesis Membership