Pengaruh Pekerjaan dan Tingkat Pendidikan Orangtua terhadap Prevalensi Soil-transmitted Helminths pada Keluarga Siswa Sekolah Dasar di Kalibaru dan Batuampar, Jakarta = The effect of parental occupation and education level on the prevalence of soil-transmitted helminths in elementary school students' families in Kalibaru and Batuampar, Jakarta