Batubara, Gresia, Ni Made Suyastiri Yani Permai, and Indah Widowati. “Analisis Pengendalian Kualitas Produk Teh Hitam Di PT. Perkebunan Tambi Unit Perkebunan Bedakah Kabupaten Wonosobo Jawa Tengah”. Jurnal Dinamika Sosial Ekonomi 22, no. 1 (August 19, 2021): 1–16. Accessed July 13, 2025. https://jurnal.upnyk.ac.id/index.php/jdse/article/view/5371.