Narayaqnan, k. k., & geevarghese Salim, D. (1974). Avrtha beejikalude roopavijnanam. State Institute of Languages.
Dyfyniad Arddull ChicagoNarayaqnan, k k., and D. geevarghese Salim. Avrtha Beejikalude Roopavijnanam. Trivndrum: State Institute of Languages, 1974.
Dyfyniad MLANarayaqnan, k k., and D. geevarghese Salim. Avrtha Beejikalude Roopavijnanam. State Institute of Languages, 1974.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.