Pembatalan Perjanjian Pemanfaatan Tanah oleh Pemegang Hak Pengelolaan terhadap Keberlakuan Sertipikat Hak Guna Bangunan di Atas Tanah Hak Pengelolaan Di Batam = Termination of Land Use Agreements by Management Rights Holders Regarding the Validity of Building Use Rights Certificates on Management Rights Land in Batam