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