Nur Hasanah, A. et al. 2011. Analyzing the Interaction of Shellegueain A: A Bioactive Compound of Pakis Tangkur (Selliguea feei or Polypodium feei) to Cyclooxygenase Enzyme by Molecular Docking. Asian Journal of Chemistry. 23, 7 (Mar. 2011), 3093–3096.