Studies

• 
  Kovilan (stories, studies, interview)(January 1991)
  Editor: Udayabhanu
  Publisher: Mulberry Publications, Calicut, Kerala, India.
  
• 
  Vamsapperuma (Kovilan: kalayum jeevithavum) (December 1996)
  Editor: Mohanraj
  Publisher: Sameeksha, KuLappuram, Kannur, Kerala, India.
  
• 
  Kovilante vazhikaL (November 1997)
  Naseeb, S.
  Publisher: Imprint, Kollam, Kerala, India.