Analisis Perilaku Ketahanan Nasional Menggunakan Cusp Catastrophe melalui Himpunan Kesejahteraan dan Keamanan (Studi Kasus Pemerintahan Susilo Bambang Yudhoyono Periode 2009 s.d 2014) = Analysis National Resilience Behavior Using Cusp Catastrophe through The Set of Welfare and Security (Case Study on Susilo Bambang Yudhoyono's Government on Period 2009 until 2014).