APA-referens (7:e uppl.)

Kokusai Kyōryoku Jigyōdan. (1988). The Study on the integrated regional development plan for the northern part of Sumatra: Progress report II. JICA.

Chicago-referens (17:e uppl.)

Kokusai Kyōryoku Jigyōdan. The Study on the Integrated Regional Development Plan for the Northern Part of Sumatra: Progress Report II. [Jakarta]: JICA, 1988.

MLA-referens (8:e uppl.)

Kokusai Kyōryoku Jigyōdan. The Study on the Integrated Regional Development Plan for the Northern Part of Sumatra: Progress Report II. JICA, 1988.