RIFKOWATY, E. E. FUNGSIONAL BEVERAGES INSTANT GINGER POWDER (Zingiber officinale rosc)WITH THE ADDITION OF BULBULUS EXTRACT VARIATION (Eleutherine Americana Merr) AS NATURAL DYES. Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering), [S. l.], v. 4, n. 4, 2016. Disponível em: http://jurnal.fp.unila.ac.id/index.php/JTP/article/view/1004. Acesso em: 9 oct. 2025.