Weerakoon, Chandana Ancient Sri Lankan Management Concepts - Vijithayapa, Colombo 04; 2015. - xxvii, 100p. ; 21 cm. ISBN: 9789556652680 Nat. Bib. Agency Control No.: 930.1 WEE Subjects--Topical Terms: Archeology / පුරාවිද්යාව Dewey Class. No.: 930.1