Yuniati, Yuyun, Dhiya Dini Azmi, Eric Nurandriea, Lailatul Qadariyah, and Mahfud. “Parametric Study and Characterization of Sappan Wood (Caesalpinia Sappan Linn) Natural Red Colorant Extract With Ultrasonic Assisted Extraction Method”. ASEAN Journal of Chemical Engineering 23, no. 1 (June 30, 2023): 103-112. Accessed November 6, 2024. https://dev.journal.ugm.ac.id/v3/AJChE/article/view/9276.