Babu Chengannur, . (1961). Neelamalakaluteyum. Kottayam: Malayala Manorama; Kottayam.
Babu Chengannur, . 1961. Neelamalakaluteyum. Kottayam: Malayala Manorama; Kottayam.
Babu Chengannur, . Neelamalakaluteyum. Kottayam: Malayala Manorama; Kottayam. 1961.