Yuniati Y, Azmi DD, Nurandriea E, Qadariyah L, Mahfud. Parametric Study and Characterization of Sappan Wood (Caesalpinia Sappan Linn) Natural Red Colorant Extract with Ultrasonic Assisted Extraction Method. [Internet]. 30 Juni 2023 [dikutip 7 Juni 2025];23(1):103-12. Tersedia pada: https://jurnal.ugm.ac.id/v3/AJChE/article/view/9276