Hidayat, Irsyad Maulana. “Fluktuasi Perdagangan Komoditi Kopi Indonesia-Jerman 2019-2021”. Jurnal Ilmu Hukum, Humaniora dan Politik 4, no. 5 (July 5, 2024): 1271–1279. Accessed July 27, 2024. https://dinastirev.org/JIHHP/article/view/2213.