Library, University of Sri Jayewardenepura, Sri Lanka : Search for 'an:14190 and holdingbranch:MAIN and su-to:General Knowledge'

UNESCO associated schools project for promoting international education

Paris UNESCO 1992 . 133 p. 28 cm.

London McMillan 1999 . 262 p. 22 cm.. 9780752217963

By Senevirathna, D. R.. Colombo Samayawardhana 1967 . 226 p. , Text in sinhala

By Senevirathna, D. R.. Colombo Samayawardhana 1967 . v, 226 p, viii. , Text in Sinhala

By Fernando, Albert J. . Colombo Karunarathne 1991 . 123 p. , Text in Sinhala 21 cm.. 9789559098010

By Perera, Anura C.. Nugegoda Sarasavi 2003 . 156 p. 22 cm.. 9789555732310

By Wijetunge, Navanaliye. . 68 p. , Text in sinhala 22 cm.

By Kamalthasan, P.. Colombo Poobalasingham 2012 . viii, 462 p. , ISBN: 978-955-9396-54-3 20 cm.. 9789559396543

By Karunarathna, D. M.. Ganemulla Udaya Printers . 153 p. 21 cm.. 955934656X