Hasnaeni et al. 2025. Phytochemical Screening of Strobilanthes crispa Leaf Extract Obtained by Ultrasound-Assisted Extraction (UAE) Method. Hydrogen: Jurnal Kependidikan Kimia. 13, 6 (Dec. 2025), 1104–1110. DOI:https://doi.org/10.33394/hjkk.v13i6.18483.