Gunasekara, Dhanapala පුස්තකාල සේවාවේ මූලිකාංග = Pusthakala Sewawe Mulikanga - Colombo: Goage, 1998. - xi,220p.; 21 cm ISBN: 955-20-3101-X Subjects--Topical Terms: Library & Information Science Dewey Class. No.: 025.1 / GUN