Authoria, Nila, Lilik Wijayanti, and Ratih Puspita Febrinasari. 2023. “Differences of Quercetin Content in Fresh and Extracts Local Apples Using High Performance Liquid Chromatography Method”. Journal of Healthcare and Biomedical Science 1 (1):24-35. https://doi.org/10.31098/jhbs.v1i1.1369.