Analisis Pengaruh Modal Sosial terhadap Produktivitas Usahatani Padi: Studi Kasus Desa Timbulharjo, Kecamatan Sewon, Kabupaten Bantul - Hikmah, Nurul; Department of Economics, Faculty of Economics and Business, Universitas Muhammadiyah Yogyakarta, Yogyakarta (Program Studi Ekonomi FEB UMY, 2019)