R. Amster Regin Lawrence and J. John Peter Paul, “GC-MS Analysis of Ethanolic Extract of Pteridium Aquilinum (L.) Kuhn: An Important Fern”, J. Drug Delivery Ther., vol. 9, no. 4, pp. 285–287, Jul. 2019, doi: 10.22270/jddt.v9i4.3044.