Wijeratna, N.P. ඕටකැඩ් සැලසුම් අඳින්නේ මෙහෙමයි = autocad salasum adinne mehemay - Kotadeniyawa: Ashirwada Prkashaka, 2005. - 270p.; 22 cm ISBN: 955-8884-22-7 Subjects--Topical Terms: Plans and drawingsEngineering Dewey Class. No.: 692.1 / WIJ