UJI KARAKTERISTIK FISIK BENANG PAKAN BERBAHAN DASAR SERAT ALAMI TANAMAN LIDAH MERTUA (Sansevieria cylindrica) (Physical Characteristics Test of Yarn Feed Made from Natural Sansevieria (Sansevieria cylindrica) Fibers) - Andini, Annisa Puti; Program Studi Keteknikan Pertanian, Fakultas Pertanian US Jl. Prof. Dr. A. Sofyan No. 3 Kampus USU Medan 20155 (Universitas Sumatera Utara, 2018)