APA Style

Sumatra Barat. (1992). Yogyakarta: YBWN.

Chicago Style

Sumatra Barat. . Yogyakarta: YBWN, 1992. .

MLA Style

Sumatra Barat. . Yogyakarta: YBWN, 1992. .

Turabian Style

Sumatra Barat. Yogyakarta: YBWN, 1992. .