Fembriarti Erry Prasmatiwi, Dyah Aring Hepiana Lestari, R. Hanung Ismono, Indah Nurmayasari, Rusdi Evizal. Penentuan Harga Pokok Produksi dan Pendapatan Usahatani Kopi di Kecamatan Bulok Kabupaten Tanggamus . J. Trop. Upland Res. [Internet]. 2020Jun.30 [cited 2026Jan.15];2(1):140-9. Available from: https://jtur.lppm.unila.ac.id.121-50-32-50.cpanel.site/jtur/article/view/89