FAUZI, IIF RAHMAT, and Lindawati Lindawati. “TINGKAT PRODUKSI DAN PROFITABILITAS PENERAPAN SISTEM SADAP FREKUENSI RENDAH DI PERUSAHAAN PERKEBUNAN KARET SUMATRA UTARA”. Jurnal Penelitian Karet 41, no. 1 (June 2, 2023): 69–80. Accessed January 4, 2025. https://ejournal.puslitkaret.co.id/index.php/jpk/article/view/854.