Zewail, Ahmed, A Message from the Director, su ust.caltech.edu, Physical Biology Center for Ultrafast Science and Technology, California Institute of Technology. URL consultato l'8 agosto 2016 (archiviato dall'url originale il 10 agosto 2016).
Zewail, Ahmed, Optical and magnetic resonance spectra of triplet excitons and localized states in molecular crystals, University of Pennsylvania, 1975, OCLC54507972.