USU Press,500 UMSU PRESS,479 UMSU,240 Ufuk press,104 Usaha Nasional,67 UMA Press,65 UNPRI,58 UNIMED Publisher,53 USU,52 universitas terbuka,45 UMSU Press,,42 Universitas Sumatera Utara,38 UI Press,28 Ufuk,27 Ufuk Fiction,22 Ummul Qura,22 USU20 UNDHAR Press,20 Universitas Indonesia,20 UFUK Publishing House,19