Rahayuningsih, Edia, Dyah A Wikansari, and Hendrik Setiawan. “Natural Colorants from Cosmos Sulphureus Cav. And Tagetes Erecta L.: Extraction And Characterization”. ASEAN Journal of Chemical Engineering 2016, no. 2 (December 31, 2016): 44-58. Accessed November 24, 2024. https://journal.ugm.ac.id/v3/AJChE/article/view/8913.