Kecenderungan anak putus sekolah ditinjau dari faktor ekonomi dan faktor non ekonomi : studi kasus pada 6 keluarga miskin di kelurahan Pangkalan Jati kecamatan Cinere Kota Depok Provinsi Jawa Barat = Trends in children's out of school judging from the economic and non-economic factors : case study on the 6th of poor households in subdistrict Pangkalan Jati district Cinere Depok west Java province