Putri, Mega. “Pengaruh Daerah Tempat Tumbuh Terhadap Kadar Kafein Biji Kopi Robusta (Coffea Canephora)”. JURNAL ILMU KESEHATAN BHAKTI SETYA MEDIKA 7, no. 1 (April 19, 2022): 33–42. Accessed January 22, 2025. https://jurnal.poltekkes-bsi.ac.id/index.php/bsm/article/view/83.