RANCANG BANGUN ALAT PENCUCI WORTEL MEKANIS (Design and Construction of Carrot Washer) - Meliala, John Frienta; Program Studi Keteknikan Pertanian Fakultas Pertanian, Fakultras Pertanian USU Jl. Prof Dr. A. Sofyan No. 3 Kampus USU Medan 20155 (Universitas Sumatera Utara, 2018)