Ratnāyaka, A. (1981). Apē Siṃhala janakavi hā janakatā. Prajāvabōdhana Prakāśana Aṃśaya, Sarvōdaya Mūlasthānaya.
Dyfyniad Arddull ChicagoRatnāyaka, Abēsīla. Apē Siṃhala Janakavi Hā Janakatā. Moraṭuva: Prajāvabōdhana Prakāśana Aṃśaya, Sarvōdaya Mūlasthānaya, 1981.
Dyfyniad MLARatnāyaka, Abēsīla. Apē Siṃhala Janakavi Hā Janakatā. Prajāvabōdhana Prakāśana Aṃśaya, Sarvōdaya Mūlasthānaya, 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.