Rahayuningsih E, Wikansari DA, Setiawan H. Natural Colorants from Cosmos Sulphureus Cav. and Tagetes Erecta L.: Extraction And Characterization. [Internet]. 31 Desember 2016 [dikutip 8 Juni 2025];2016(2):44-8. Tersedia pada: https://journal.ugm.ac.id/v3/AJChE/article/view/8913