Schwarzer, R. (2016). Health Action Process Approach (HAPA) as a Theoretical Framework to Understand Behavior Change.
Chicago-tyylinen lähdeviittausSchwarzer, Ralf. Health Action Process Approach (HAPA) As a Theoretical Framework to Understand Behavior Change. 2016.
MLA-viiteSchwarzer, Ralf. Health Action Process Approach (HAPA) As a Theoretical Framework to Understand Behavior Change. 2016.
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