Durmuşkahya, C., Alp, H., Hortooğlu, Z. S., Toktas, Ümit, & Kayalar, H. (2016). X-ray fluorescence spectroscopic determination of heavy metals and trace elements in aerial parts of <i>Origanum sipyleum</i> L from Turkey. Tropical Journal of Pharmaceutical Research, 15(5), 1013–1015. https://doi.org/10.4314/tjpr.v15i5.16