Barlow, Colin The North sumatran regional economy : growth with unbalanced development / Colin Barlow - Canberra : The Australian National University , 1987 - 81p. : ill. ; 10 cm. - Working papers in trade and development No. 87/15 . Includes bibliographical references. Subjects--Topical Terms: Regional economy Gov. Doc. Class. No.: AU ANU RSPS WPTD 87/15