P Sethumadhavan. (2010). Stephen Hawking jeevikkunna oru ithihasam. Lipi publications.
Chicago Edition CitationP Sethumadhavan. Stephen Hawking Jeevikkunna Oru Ithihasam. Kozhikode: Lipi publications, 2010.
MLA Edition CitationP Sethumadhavan. Stephen Hawking Jeevikkunna Oru Ithihasam. Lipi publications, 2010.
Warning: These citations may not always be 100% accurate.