LINDAWATI, LINDAWATI, Iif Rahmat Fauzi, Radite TISTAMA, and ATMININGSIH ATMININGSIH. 2024. “ANALISIS PERUBAHAN STRUKTUR BIAYA DAN KEBUTUHAN TENAGA KERJA PADA PENERAPAN SISTEM SADAP FREKUENSI RENDAH DI PERUSAHAAN PERKEBUNAN KARET, SUMATERA UTARA: Cost Structure Change Analysis and Labor Requirement for the Implementation of Low Frequency Tapping Systems in Rubber Plantation Companies”. Jurnal Penelitian Karet 42 (1):75-90. https://doi.org/10.22302/ppk.jpk.v42i1.888.