Kartadarma, Embit, As’ari Nawawi, and .Halida. 1. “PENENTUAN KUANTITATIF ZAT WARNA KARMOSIN,PONCEAU 4R DAN MERAH ALURA YANG DITAMBAHKAN DALAM MINUMAN AGREM (Hibiscus Sabdariffa, Linn) [Quantitative Determination of Carmoisine, Ponceau 4R and Allura Red Colouring Agents Added Into Softdrink Containing the”. Jurnal Teknologi Dan Industri Pangan 18 (1), 67. https://journal.ipb.ac.id/index.php/jtip/article/view/4331.