Ningtias, Silvia, Harjono Harjono, Cepi Kurniawan, and Samuel Wardhana Kusuma. 2023. “Optimization Ultrasonic Assisted Extraction of Dye from African Tulip Leaves (Spathodea Campanulata P. Beauv) and Optimization of It’s Application As A Textiles Dye”. Indonesian Journal of Chemical Science 12 (2), 143-60. https://doi.org/10.15294/ijcs.v12i2.70623.