ගුරු අධ්යාපනඥයිනට අත්වැලක් : විද්යාව III = Guru Adhyapanaghayinta athwelak - widhyawa III - Ministry of Education, 1998. - XII,44p.; ill. 28cm Subjects--Topical Terms: Education, Research, Related Topics Dewey Class. No.: 507 / GUR