Nasution, Ananta Mulia Alfatah, Ngatirah, Herawati Oktavianty, and Nanda Eska Anugrah Nasution. “The Effect of Variations in the Water-to-Coffee-Powder Ratio on the Water Content and Caffeine Content of Sigarar Utang Instant Arabica Coffee”. META: Journal of Science and Technological Education 2, no. 2 (December 7, 2023): 75–80. Accessed September 8, 2024. https://meta.amiin.or.id/index.php/meta/article/view/74.