The Study on the integrated regional development plan for the northern part of Sumatra : final report v. 4 The Study on the integrated regional development plan for the northern part of Sumatra : final report v. 4Study on the integrated regional development plan for the northern part of Sumatra
Data source
National Diet Library Digital Collections
The NDL Digital Collections enables a user to search and view a variety of resources, collected and stored by the National Diet Library of Japan.
Last updated
June 3, 2026