Kebahagiaan penduduk usia lanjut pada rumah tangga Solo (One Person Household/OPH) di Indonesia = The happiness of the elderly population at One Person Household (OPH) in Indonesia

Pengaruh pengisisan waktu luang terhadap kebahagiaan lanjut usia: The effect of sparetime activities on ages happiness

Determinan pengakuan kebahagiaan lanjut usia di Indonesia (analisis data susenas triwulan ketiga dan modul sosial budaya pendidikan tahun 2012) = The determinants of happiness of indonesian s older people the analysis of susenas s data and modul of social culture education on 2012

Perbedaan kebahagiaan antara karyawan kontrak dan karyawan tetap pada usia dewasa muda = The different happiness between temporary and regular employee on young adulthood

Kebahagiaan dan perilaku memberi di Indonesia = Happiness and giving behavior in Indonesia