His Śaṅkarakkur̲uppȧ ... 1963.
Nārāyaṇapiḷḷa, Pi. Ke. Pañcānanant̲e vimarśatr̲ayaṃ, 1980: t.p. (Pr̲opha. Sukumār Al̲ikkōṭȧ) p. facing t.p. (Prof. Sukumar Azhikode)
His Guruvint̲e duhkhaṃ, 1993: t.p. (Ḍō. Sukumār Al̲īkkōṭ) t.p. verso (Dr. Sukumar Azheekode)
Malayāḷasāhitya paṭhanaṅṅaḷ, 1986: t.p. verso (Sukumar Azhicode; M.A.(Mal.); M.A.(San.); Ph. D.(Mal))
Naṭṭellȧ enna guṇaṃ, 2006: t.p. (Sukumār Al̲īkkōṭ)
Wikipedia WWW site, Jan. 24, 2012 (Sukumar Azhikode; Malayalam: Sukumār Al̲īkkōṭ; b. May 26, 1926, Azhikode, Kannur, Kerala; d. Jan. 24, 2012, Thrissur, Kerala; Indian writer, critic, and orator, acknowledged for his contributions to the Malayalam language and insights on Indian philosophy)