Sinhala

Sāhitya Vidyāva (1949)

Sinhala Navakatā Itihāsaya hā Vicāraya (1951)

Kalpanā Lōkaya (1958)

Sanskruta nātya śäiliya: Mäti karattaya
Translated from Sudraka’s Mrccha katikā by Piyadasa Nissanka and edited by E.R.Sarachchandra (1959)

Nāṭya Gavēśana (1967)
A collection of articles and lectures with following titles:  Samakālīna bhārata nāṭya kalāva; Peradiga raṭavala nāṭya kalāva;Nāṭya nirmānaya hā niśpādanaya; Rasāsvādaya saha sādhāraṇikaraṇaya; Veda haṭana niśpādanaya saha Sinhala svābhāvika nāṭya kalāva; Japānayē naṭya kalāva.

Sinhala Gämi Nāṭakaya (1968)
This is a translation of: The Sinhalese Folk Play and the Modern Stage (1953)

Ves Muhunuda? Säbä Muhunuda (1971)

Jana Viññāpana Paryēśana (1992)

Sri Lankāve Vartmāna Samāja Arbudaya (1988)
In collaboration with T.B.Ariyarathne