Agustin, R., Novita, D., Pratama, H., Sela, S., Cyntia, S., & Noor, D. (2020). Analisis Korelasi Luas Lahan Serta Ekspor Kopi Lampung Terhadap Ekspor Kopi Indonesia. Indonesian Journal Of Applied Mathematics, 1(1), 25-30. Retrieved from https://journal.itera.ac.id/index.php/indojam/article/view/289