Vallathol prasthanam: kavithakale munnirthi oru tharathamyaatmaka padanam(Preliminary Thesis) /

Eitemau Tebyg

• Malayala kavithayum paristhithi bodhavum: Edasseri, Vailoppilli, N.V. ennivarude kavithakale munnirthi oru padanam(Preliminary Thesis) /
  gan: Bindu Puthiyakavil, V.
  Cyhoeddwyd: (2003)
• Vallathol-Samagrapatanum /
  gan: Balakrishnan,, A
  Cyhoeddwyd: (2001)
• vallathol navayugathinte kavi /
  gan: Sankaran, J.
  Cyhoeddwyd: (1986)
• Vallathol
  gan: Madhava Warrier Madassery
  Cyhoeddwyd: (1964)
• Vallathol navayugathinte kavi/
  gan: Sankaran,Thayat
  Cyhoeddwyd: (1986)