KAJIAN POTENSI PRODUKSI PADI SERTA EVALUASI KINERJA OPERASI DAN PEMELIHARAAN SISTEM IRIGASI BANDAR DOLOK DI KECAMATAN PAGAR MERBAUKABUPATEN DELI SERDANG (The Study of Rice Potential Production with The Operational Work Evaluation and Maintenance of Bandar - Tanjung, Muhammad Iqbal; ProgramStudiKeteknikanPertanian,FakultasPertanianUSU Jl.Prof.Dr.A.SofyanNo. 3 KampusUSUMedan20155 (Universitas Sumatera Utara, 2018)