zulkarnain, Zulkarnain -, and Muhamad gary ranchianowarganegara. “Analisis Kelayakan Finansial Pada Tanaman Lada Di Kabupaten Lampung Timur”. Jurnal Penelitian Pertanian Terapan 20, no. 1 (March 16, 2020): 38-47. Accessed November 24, 2024. https://jurnal.polinela.ac.id/jppt/article/view/1223.