Kokusai Kyōryoku Jigyōdan. (1988). The Study on the integrated regional development plan for the northern part of Sumatra: Progress report II. JICA.
Chicago Style aipamenaKokusai Kyōryoku Jigyōdan. The Study on the Integrated Regional Development Plan for the Northern Part of Sumatra: Progress Report II. [Jakarta]: JICA, 1988.
MLA aipamenaKokusai Kyōryoku Jigyōdan. The Study on the Integrated Regional Development Plan for the Northern Part of Sumatra: Progress Report II. JICA, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.