Frías-Zepeda , M. Estela, and Martha Rosales-Castro. “Effect of Extraction Conditions on the Concentration of Phenolic Compounds in Mexican Oregano (Lippia Graveolens Kunth) Residues”. Revista Chapingo Serie Ciencias Forestales Y Del Ambiente, vol. 27, no. 3, July 2021, pp. 367–381, doi:10.5154/r.rchscfa.2020.10.066.