Johannes Jaahne, . (1972). Gramapaathakal. Trivandrum: State Institute Languages; Trivandrum.
Johannes Jaahne, . 1972. Gramapaathakal. Trivandrum: State Institute Languages; Trivandrum.
Johannes Jaahne, . Gramapaathakal. Trivandrum: State Institute Languages; Trivandrum. 1972.