Prosedur Penerbitan Surat Izin Belajar Pegawai Negeri Sipil di Lingkungan Pemerintahan Deli Serdang - Wahyu Rahmadhan; Muhaamad Aswin Hasibuan; Taufik Wal Hidayat (JPPUMA: Jurnal Ilmu Pemerintahan dan Sosial Politik UMA (Journal of Governance and Political Social UMA), 2013)