Sihotang J, Nopeline N, Purba ML, Zai Y. Studi Determinan Ekspor Kopi Indonesia ke Amerika Serikat. JEK [Internet]. 2024 Mar. 6 [cited 2024 May 15];6(1):77-88. Available from: https://jurnal.usi.ac.id/index.php/ekuilnomi/article/view/1106