Hartanto Nugroho, L., Utaminingsih, Sri Hartini, Y., Julianus, J. and Susandarini, R. 2026. Phytochemical profiling and identification of chemical markers in four Piper species using liquid chromatography-high resolution mass spectrometry for authentication of herbal products. Agriculture and Natural Resources. 59, 5 (Mar. 2026), 590509.