Public speaking self-efficacy komunikator dalam mengkampanyekan "Program Generasi Berencana" (Studi pada Finalis Duta Mahasiswa Generasi Berencana Tingkat Nasional 2013) = Public speaking self efficacy of the communicator within campaigning "The Planned-Generation Program" (Study on the 2013 Nasional Student Ambassador Finalists For The Planned-Generation) / Dea Qisthina Gumayyura